Academic literature on the topic 'Induction Steel'

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Journal articles on the topic "Induction Steel"

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Whitley, B. M., John G. Speer, R. L. Cryderman, R. C. Goldstein, K. O. Findley, and David K. Matlock. "Effects of Microalloy Additions and Thermomechanical Processing on Austenite Grain Size Control in Induction-Hardenable Medium Carbon Steel Bar Rolling." Materials Science Forum 879 (November 2016): 2094–99. http://dx.doi.org/10.4028/www.scientific.net/msf.879.2094.

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Three AISI 1045 steels: a base steel, one modified with vanadium (V), and one modified with V and niobium (Nb) were studied to evaluate microstructural conditioning prior to induction hardening. Simulated bar rolling histories were evaluated using fixed-end hot torsion tests with a Gleeble® 3500. The effects of chemical composition and thermomechanical treatment on final microstructures were examined through analysis of laboratory simulations of steel bar rolling and induction hardening processes in order to provide additional insights into the morphological evolution of austenite of microalloyed steels. Analysis of prior austenite grain size (PAGS) is complemented with analysis of austenite recrystallization and pancaking during rolling. The potential for utilizing TMP, in conjunction with microalloy additions, to enhance bar steel microstructures and subsequent performance is assessed by evaluating the induction hardening response of each steel systematically processed with different preconditioning treatments.
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Verhoeven, J. D., H. L. Downing, and E. D. Gibson. "Induction case hardening of steel." Journal of Heat Treating 4, no. 3 (June 1986): 253–64. http://dx.doi.org/10.1007/bf02833303.

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Ahmed, A., S. N. Ghali, M. Eissa, and S. A. El Badry. "Influence of Partial Replacement of Nickel by Nitrogen on Microstructure and Mechanical Properties of Austenitic Stainless Steel." Journal of Metallurgy 2011 (November 16, 2011): 1–6. http://dx.doi.org/10.1155/2011/639283.

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A new modified austenitic stainless steel has been developed through partial replacement of nickel by nitrogen. Nitrogen stainless steel was produced in 10 kg induction furnace under nitrogen pressure, while reference one, AISI 316 steel grade, was produced in open-induction furnace. Both were cast and hot forged, and the total nitrogen was determined. Furthermore, the produced forged steels were subjected to solution treatment at different temperatures. The microstructure of produced stainless steels was observed. The X-ray diffractmeter and Mossbauer effect spectroscopy were used to follow the phase change in reference and modified steels after different heat treatment temperatures. The influence of grain-size, soluble, and insoluble nitrogen on tensile strength and hardness was investigated. The major phase in the modified steel has a fcc structure similar to the reference one, but with finer grains and more expanded lattice. The yield strength and hardness of the nitrogen-modified stainless steel are higher than the reference steel. On the other hand, the increase of nitrogen content deteriorates the steel ductility.
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Rokicki, P., E. Bąk, G. Mrówka-Nowotnik, and A. Nowotnik. "Single-frequency induction hardening of structural steel." Journal of Achievements in Materials and Manufacturing Engineering 2, no. 86 (February 1, 2018): 61–69. http://dx.doi.org/10.5604/01.3001.0011.8237.

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Purpose: Current paper presents investigation of specimens after single frequency induction hardening process. The main aim is to compare microstructure of the material after the process conducted with different voltage on the induction coil. Moreover, two different steel grades are used for comparative reasons. As the final result it is desired to obtain sufficient parameters for the process in aim to obtain proper surface treatment of the material. Design/methodology/approach: The objectives of the research are achieved by using single-frequency induction hardening device with varying voltage. Two different steel grades were treated with change of the induction voltage from 300 to 600 V. Findings: In the outcomes of the study, the main conclusion is that there is an impact of the induction voltage in the hardening process on the microstructure of treated elements, both for 40H41Cr4 and 40HNMA36NiCrMo16 steels. Research limitations/implications: Obtained results will be used for much more complex investigation of the induction hardening process in future to introduce more exact parameters and double-frequency induction hardening process for complex geometries as gears. Originality/value: The originality of the research is based on the specific process and the materials that are being submitted to the comparative analysis. Moreover, executed research will be a basis for more complex induction hardening processes in the future.
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Iswanto, Iswanto. "Perbandingan Induction Hardening dengan Flame Hardening pada Sifat Fisik Baja ST 60." Mekanika: Majalah Ilmiah Mekanika 19, no. 2 (September 29, 2020): 90. http://dx.doi.org/10.20961/mekanika.v19i2.43203.

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<p><em>This study will discuss the comparison between induction hardening with flame hardening in ST 60 steel in terms of tensile strength and microstructure. The induction hardening machine is designed and made by itself with the maximum heat generated reaching 650 °C. While the flame hardening machine uses an acetylene welding machine. After heating the specimen to 650 °C, it is then cooled using water. Each heating process uses three specimens for tensile testing and microstructure testing. From the tensile test results obtained that, ST 60 steel with induction hardening has a greater tensile strength compared to flame hardening. ST 60 steels which experienced induction hardening treatment also had higher strain compared to ST 60 steels which experienced flame hardening treatments.</em></p>
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Kida, Katsuyuki, Koretoko Okamoto, Masayuki Ishida, Koshiro Mizobe, and Takuya Shibukawa. "Observation of Corrosion Resistance of 13Cr-2Ni-2Mo Stainless Steel Quenched by Induction Heating." Applied Mechanics and Materials 597 (July 2014): 140–43. http://dx.doi.org/10.4028/www.scientific.net/amm.597.140.

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13%-Cr martensitic stainless steels are widely used in the production of many mechanical components that require high hardness and good corrosion resistance. In the present work, 20mm-diameter 13Cr-2Ni-2Mo steel bars were quenched by induction heating (IH) method and after that tempered in a farness. 240 hours corrosion test of the bars was carried out using a salt spray testing method (JIS Z 2371:2000). The results were compared to two stainless steels, SUS304 and SUS440C. Their inner hardness distributions were measured. It was found that the hardness of IH-quenched and farness-tempered 13Cr-2Ni-2Mo stainless steel is almost the same as that of the SUS440C. The 13Cr-2Ni-2Mo steel has the same corrosion resistance as the SUS304 steel.
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Liang, Kaiming, Panagiotis Tsarabaris, Aphrodite Ktena, Xiaofang Bi, and Evangelos Hristoforou. "Smart Stress Annihilation in Steels Using Residual Stress Distribution Monitoring and Localized Induction Heating." Metals 10, no. 6 (June 24, 2020): 838. http://dx.doi.org/10.3390/met10060838.

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The monitoring and control of residual stresses and microstructure are of paramount importance for the steel industry. Residual stress annihilation is needed during the entire lifetime of steels. In this paper, we presented a stress monitoring and annihilation method, based on a force sensor for stress monitoring and an induction heater for localized heat treatment and corresponding stress annihilation. The heat treatment results indicated an at least 90% reduction of localized stresses, allowing for the implementation of the method in steel production and manufacturing to improve steel quality and perform faultless steel production and manufacturing.
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Zhang, Xue-biao, Yu-long Yang, and Yu-jun Liu. "The Numerical Analysis of Temperature Field During Moveable Induction Heating of Steel Plate." Journal of Ship Production and Design 28, no. 02 (May 1, 2012): 73–81. http://dx.doi.org/10.5957/jspd.2012.28.2.73.

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In shipyards, hull curved plate formation is an important stage with respect to productivity and accuracy control of curved plates. Because the power and its distribution of induction heat source are easier to control and reproduce, induction heating is expected to be applied in the line heating process. This paper studies the moveable induction heating process of steel plate and develops a numerical model of electromagneticthermal coupling analysis and the numerical results consistent with the experimental results. The numerical model is used to analyze the temperature changing rules and the influences on plate temperature field of heating speed of moveable induction heating of steel plate, and the following conclusions are drawn. First, the process of moveable induction heating of steel plate can be divided into three phases of initial state, quasi-steady state, and end state. The temperature difference between the top and bottom surfaces of the steel plate at the initial state is the biggest; it remains unchanged at the quasi-steady state and it is the smallest at the end state. Second, obvious end effect occurs when the edges of the steel plate are heated by the inductor, which causes a decrease in temperature difference between the top and bottom surfaces of the steel plate that is unfavorable for formation of pillow shape plates. Third, with the increase of heating speed, the temperature difference between the top and bottom surfaces of the steel plate increases gradually.
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Samran, Santalunai, Thosdeekoraphat Thanaset, and Thongsopa Chanchai. "Thermal Analysis of Inductive Coils Array against Cylindrical Material Steel for Induction Heating Applications." Applied Mechanics and Materials 330 (June 2013): 754–59. http://dx.doi.org/10.4028/www.scientific.net/amm.330.754.

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This paper presented the heating of inductive coil which is 3 elements array. The induction heating coil improve the variations heating that it is increased the system efficiency. By means of the inductive coil has the diameter of 2, 3 and 4 cm and divide the coil as 2 types. There are the inverses and reverse inductive coil arrays, with heating test by cylindrical steel material. Then, this paper considers the heating efficiency simulation of 2 types by CST EM studio 2009. In addition, the experimental of the inductor heating is use the full bridge inverter circuit, the power of 200 W at 28 kHz resonant frequency. Moreover, the distance between coils is coincided of simulation and experimental results, the inverse type at the diameter of 2 cm can be provide the maximum heater.
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Iagar, A., I. Sora, D. Radu, C. Panoiu, and C. Abrudean. "Technological practicability of the numericalmodeling of induction heating process in steel pieces." Revista de Metalurgia 45, no. 1 (February 28, 2009): 20–31. http://dx.doi.org/10.3989/revmetalm.0736.

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Dissertations / Theses on the topic "Induction Steel"

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BATISTA, GILMAR ZACCA. "INDUCTION HOT BENDING OF STEEL PIPE API 5L X80." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8660@1.

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PETRÓLEO BRASILEIRO S. A.
Neste trabalho são apresentados os efeitos do processo de curvamento a quente por indução na microestrutura e nas propriedades mecânicas do tubo API 5L X80, fabricado pelo processo UOE, com chapa produzida através do processo de laminação controlada sem resfriamento acelerado. O curvamento foi realizado com aquecimento localizado, provocado por uma bobina de alta freqüência, seguido de resfriamento por jatos de água. O tubo curvado foi avaliado e comparado com o tubo reto. Adicionalmente, foi realizado um tratamento térmico de revenido em parte da região curvada. Foram realizados ensaios mecânicos de tração, microdureza e impacto Charpy-V, análises dimensionais e avaliação microestrutural. Verificou-se uma alteração significativa na microestrutura da região curvada, resultando em uma curva com menores valores de temperatura de transição e limite de escoamento inferior ao do tubo original e ao requerido por norma. O tratamento térmico aplicado na região curvada, mostrou-se eficiente para elevar o limite de escoamento para valores acima do mínimo especificado pela norma API 5L para o X80.
The present work discusses the effect of the induction bending process on the microstructure and the mechanical properties of an API 5L X80, 20 pipe produced by the UOE process. The key characteristic of the pipe was the manufacturing process of the steel plate, involving thermomechanical controlled rolling without accelerated cooling. The pipe bending was carried out applying local induction heating followed by water quenching and a further temper heat treatment was applied to the curved section. The methodology of analysis compared the curved section with the original body pipe, taking into account dimensional analysis, microstructural evaluation and mechanical tests which included Charpy-V impact, tensile and microhardness. A significant microstructural change and decrease, not only in the transition temperature, but also in the yield strength ocurred after induction bending, this reduction was below the standard requirements. The subsequent tempering heat treatment applied to the curved section produced an increase in the yield strength to achieve the API 5L requirements for this class of steel.
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Yan, Pei. "High frequency induction welding & post-welding heat treatment of steel pipes." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609702.

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Hayford, Frank. "CLEANLINESS ASSESSMENT OF STEEL BARS PRODUCED FROM A HIGH FREQUENCY INDUCTION FURNACE." Thesis, KTH, Tillämpad processmetallurgi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-125018.

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To stay competitive in the steel industry, steelmakers are utilizing different production methods to reduce production cost without compromising on the quality of their products. In steelmaking, the production process plays a significant role on the steel cleanliness. Recent increasing demands on the cleanliness level therefore require optimization of production process to meet the requirement. Often, the types and distribution of non-metallic inclusions in steel determines the steel cleanliness. In order to optimize the production process, complete assessment of the non-metallic inclusions in the steel is necessary, leading to implementation of measures to control and/or remove non-metallic inclusions in the steel. The present study was performed to investigate the cleanliness level of steel bars produced from a high frequency induction furnace (HF) route at Uddeholms AB. Experimental studies were carried out and characteristics such as number, composition, size distribution and morphology of non-metallic inclusions were investigated. Total oxygen and total nitrogen content were also measured for indirect assessment. Further, the production operations at the HF were observed and evaluated to determine their influence on the inclusion characteristics. The characteristics obtained were compared with characteristics of inclusions in steel bars produced from an electric arc furnace production (EAF) route at Uddeholms AB and a competitor producer sample. The results showed that the level of cleanliness varies from different production routes and is hence dependent on the process at each production route. The number, maximum and mean size of inclusions were found to be higher in the HF route compared to the other routes. More so, there were differences in the types of oxide inclusions observed from each process route. However, sulphide inclusions exhibit similar characteristics from the different process routes. Further, the compositions of oxide inclusions observed from the HF route were found to be closely related to the steel chemistry. More importantly, the types of inclusions formed in the HF route were found to be sensitively affected by the extent of aluminium and calcium contents in the steel. Thus, the oxide inclusion types in the HF samples could be traced to the extent of different additions and operations such as deoxidation and calcium treatment that were carried out during the steelmaking process.
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Peabody, Frank Gerald. "An investigation of high speed, thin steel rotor, annular, double sided, linear induction motors." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/29056.

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The objective of this dissertation is to analyse the performance of a linear induction motor suitable to drive a circular saw blade. A selection of analytical methods available from the field of electrical machine theory was used to investigate the particular type of motor. The theoretical analysis is supported by an extensive experimental investigation. Although LIMs have been designed, analyzed and applied in other applications, significant differences exist between those LIMs and the one used for the new application. These include: the annular shaped motor, the smaller air gap, and the rotor which is thin and made of steel. Because of these differences, the methods used by previous investigators were not sufficient to design the LIM required. The theoretical analysis used a selection of methods described in the literature to quantify the effect of the rotor material, the end effect and the edge effect. New methods are described to analyse the effect of the annular shape, the normal forces on the rotor and the coil connection. In addition, a new consideration in the optimisation of these type of motors is described. An extensive experimental program was undertaken. Six different linear motors were constructed with output powers ranging from one to fifty kWatts. In addition, inverters, dynamometers, flux measurement apparatus, speed measurement, thrust measurement and friction measurement apparatus were designed and constructed. The effects on performance of slot harmonics, winding connections, the end effect and the edge effect were measured. Several contributions to the field of electrical machine theory are presented. The first is a new annular disc motor resistivity correction factor. Second, is the analysis of the effects of poles in parallel versus in series in linear induction motors. Third, is the experimental comparison between odd and even pole designs. The fourth is a second optimum goodness consideration for LIMs, which had not previously been considered. The fifth is the analysis of the rotor/stator attractive force for magnetic rotor double sided motors and a description of the flux (crenelated flux) which causes the force. Finally, a criterion for when the re-entry effect may occur is presented.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Berger, Rikard, Andreas Kopp, and Harald Philipson. "A feasibility to electrify the combustion heated walking beam furnace : Applying induction and resistance heating." Thesis, KTH, Materialvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231460.

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The carbon footprint from the iron, steel and other metal sectors has become a problem both environmentally and economically. The purpose of this report is to propose a concept of an electrified reheat furnace for the steel industry in the making of sheet metal. The aim is to reduce the environmental impact from the steel industry. The approach in this report has been to analyse relevant facts to propose a fully electrified concept. The concept is divided into two sections. The first section of the concept consists of a preheating furnace with the purpose to heat the slabs to 850 °C before it enters the second section. The preheating furnace contains 1447 – 2412 MoSi2 heating elements due to considering different efficiencies. The second section consists of 13 induction heating modules heating the slabs to a homogenous temperature of 1250 °C. By applying electrical heating in a walking beam furnace approximately 100 000 tonne carbon dioxide can be reduced annually. In conclusion, the proposed concept could be a feasible solution in order to avoid carbon emission and obtain the same production rate as the existing reheating furnaces. However, it is suggested that further investigations and analysis are performed regarding this concept to verify the total efficiency of the reheating furnace and to theoretically determine the required power input
Koldioxidutsläppen från järn, stål och andra metallindustrier har blivit ett problem både urmiljö och ekonomisk synpunkt. Syftet med denna rapport är att föreslå ett koncept av en heltelektrifierad uppvärmningsugn för stålindustrin i processen för att skapa plåt. Målet meddenna studie är att reducera stålindustrins påverkan på växthuseffekten. Metoden i denna rapport har varit att analysera relevant fakta för att sedan kunna föreslå ettkoncept av en helt elektrifierad ugn. Det föreslagna konceptet är uppdelad i två delar. Denförsta delen består av en förvärmningsugn med målet att värma stålet till 850 °C innan ståletgår in i den andra delen. Förvärmningsugnen består av 1447 – 2412 stycken MoSi2värmeelement med hänsyn till ugnens verkningsgrad. Den andra delen består utav 13 styckeninduktionsvärmemoduler som värmen stålet till en homogentemperatur på 1250 °C. Genomatt använda elektricitet för att värma ugnen minskar koldioxidutsläppen med 66 kg per tontillverkas stål. Sammanfattningsvis, det föreslagna konceptet kan vara en möjlig lösning för att minskakoldioxidutsläpp och samtidigt bibehålla samma produktionshastighet som existerandeuppvärmningsugnar. Däremot är det förslaget att vidare studier och analyser görs påkonceptet för att verifiera den totala verkningsgraden av ugnen och för att bestämma denexakta energiförbrukningen.
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Davenport, Rebecca A. "An investigation into the manufacture and mechanical properties of an Al-steel hybrid MMC." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/17033.

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One of the most significant challenges in the composite development field is to find a low-cost manufacturing route capable of producing large volumes of material. This thesis develops and characterises a potential avenue for addressing this, an induction furnace-based process. This process produced a composite of A357 matrix and 10% wt Dramix 3D 80/30 SL steel fibres. The method was evaluated by microstructural analysis and optimum casting parameters were approximated. The fibres were introduced to liquid A357 at 700°C and the composite was brought to a measured temperature of 650°C over not more than 120 seconds before being removed from the furnace and cooled. 10% wt was the ideal reinforcement ratio for this process. Characterising the tensile and compressive strength of the composite material, it reached a peak stress 130% higher than A357 produced under the same conditions, though the peak stresses were still 20% of the literature values for T6 tempered A357. This suggests the need for development of a temper which does not degrade the properties of the composite. 3-point bending tests and some tensile specimens also showed post-failure strength. Under dynamic loading, the composite showed a peak stress in excess of 100 MPa without reaching maximum compression under SHPB loading, and comparable performance to SiC-reinforced MMCs under ballistic testing. The linear decrease in work-hardening with increasing distance from the impact site shows shock and pressure-pulse dissipation properties, attributed to the difference in acoustic impedance between the matrix and the reinforcement.
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Pettersson, Natalie. "Investigation of material removal techniques for residual stress profile determination on induction hardened steel." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-62618.

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The residual stress profile is a major factor on the fatigue life of components that are subjected to cyclic loading. In order to measure these stresses x-ray diffraction (XRD) is commonly used. The penetration depth of x-rays is limited for this method and thus, it must be combined with material removal to determine in-depth stress profiles.At SKF Manufacturing Development Center (SKF MDC), where the work for this thesis was carried out, the current layer removal method is restricted to a depth of 0.5 mm. Consequently, an additional method of material removal is necessary to obtain information at greater depths. The purpose of this thesis was to investigate possible material removal techniques that can be implemented with XRD measurements. Two different material removal techniques were studied; electrochemical etching and milling in combination with electrochemical etching. The electrochemical etching equipment was developed at SKF MDC prior to this thesis but needed further testing and validation. The residual stress profiles of induction hardened cylinders were studied using the two different removal techniques combined with XRD measurements and the results were compared with stresses measured by Electronic Speckle Pattern Interferometry (ESPI) with hole drilling. In addition, the results were compared with simulations performed at SKF MDC India. It was concluded that both the material removal methods could be successfully combined with XRD measurements. However, for practical reasons the methods should be refined before being implemented on a regular basis. Unfortunately, poor correlation between XRD and ESPI measurements were obtained due to reasons not fully understood.
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Nounezi, Thomas. "Light Weight and High Strength Materials Made of Recycled Steel and Aluminum." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/20523.

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Recycling has proven not only to address today’s economical, environmental and social issues, but also to be imperative for the sustainability of human technology. The current thesis has investigated the feasibility of a new philosophy for Recycling (Alloying-Recycling) using steel 1020 and aluminum 6061T6. The study was limited to the metallurgical aspects only and has highlighted the potential of recycled alloys made of recycled aluminum and steel to exhibit substantially increased wear resistance and strength-to-weight ratio as compared to initial primary materials. Three alloy-mixtures are considered: TN3 (5wt% 1020 +95wt% 6061T6); TN5 (0.7wt% 1020 + 99.3wt% 6061T6); and TN4 (10wt% 6061T6 + 90wt% 1020). A Tucker induction power supply system (3kW; 135-400 kHz) is used to melt the alloy mixtures for casting in graphite crucibles. Heat treatment of the cast samples is done using a radiation box furnace. Microscopy, Vickers hardness and pin-on-disc abrasive wear tests are performed. Casting destroyed the initial microstructures of the alloys leading to a hardness reduction in the as-cast and solution heat-treated aluminum rich samples to 60 Hv from 140 Hv. Ageing slightly increased the hardness of the cast samples and provided a wear resistance two times higher than that of the initial 6061T6 material. On the steel rich side, the hardness of the as-cast TN4 was 480 Hv, which is more than twice as high as the initial hardness of steel 1020 of 202 Hv; this hints to strong internal and residual stress, probably martensite formation during fast cooling following casting. Solution heat treatment lowered the hardness to the original value of steel 1020, but provided about ten (10) times higher wear resistance; this suggests higher ductility and toughness of normalised TN4 as compared to 1020. In addition, TN4 exhibits about 25% weight reduction as compared to 1020. The actual recycling process and the effect of non-metallic impurities shall be investigated in future works. Also, the casting and heat treatment processes need to be improved.
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Javaheri, V. (Vahid). "Design, thermomechanical processing and induction hardening of a new medium-carbon steel microalloyed with niobium." Doctoral thesis, Oulun yliopisto, 2019. http://urn.fi/urn:isbn:9789526223582.

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Abstract This thesis has been made within the European Industrial Doctorate (EID) project called Mathematics and Materials Science for Steel Production and Manufacturing, abbreviated as MIMESIS, which has five partners: EFD Induction in Norway; SSAB, Outokumpu, and the University of Oulu in Finland; and Weierstrass Institute for Applied Analysis and Stochastics (WIAS) in Germany. The main aim of this work was to develop a steel composition and processing route suitable for making a slurry transportation pipeline with the aid of induction hardening, and to characterize the phase transformations and microstructures involved in the various stages of the processing route. A novel steel chemistry was designed based on metallurgical principles assisted by computational thermodynamics and kinetics. The designed composition is a medium-carbon, low-alloy steel microalloyed with niobium, in wt.% 0.40 C, 0.20 Si, 0.25 Mn, 0.50 Mo, 0.90 Cr, and 0.012 Nb. This was subsequently cast, thermomechanically rolled on a laboratory rolling mill to two bainitic microstructures, and finally subjected to the thermal cycles predicted to be encountered with the internal induction hardening of a typical pipe geometry. The phase transformations and microstructures found at various stages of the simulated production process have been characterized and algorithms developed to enable the optimization of microstructure and hardness through the pipe wall thickness
Tiivistelmä Tämä väitöskirja on tehty osana Euroopan teollisuustohtori (European Industrial Doctorate, EID) -ohjelmaa projektissa eli Matematiikka ja materiaalitiede teräksen valmistuksessa ja käytössä (Mathematics and Materials Science for Steel Production and Manufacturing, MIMESIS). Ohjelmassa on viisi partneria: EFD Induction Norjasta; SSAB, Outokumpu ja Oulun yliopisto Suomesta; ja Weierstrass Institute for Applied Analysis and Stochastics (WIAS) Saksasta. Työn päätavoitteina oli kehittää teräksen koostumusta ja prosessointireittiä, jotka soveltuvat lietteen kuljetusputken valmistukseen induktiokarkaisun avulla, sekä karakterisoida prosessin eri vaiheiden aikana tapahtuvat faasimuutokset ja mikrorakenteet. Uusi teräskoostumus suunniteltiin metallurgisten periaatteiden pohjalta hyödyntämällä laskennallista termodynamiikkaa ja kinetiikkaa. Suunniteltu teräs on niobilla mikroseostettu, matalaseosteinen ja keskihiilinen, eli painoprosentteina 0,40 C, 0,20 Si, 0,25 Mn, 0,50 Mo, 0,90 Cr ja 0,012 Nb. Teräs valettiin, valssattiin ja jäähdytettiin termomekaanisesti laboratoriovalssaimella kahdeksi bainiittiseksi mikrorakenteeksi ja lopulta altistettiin lämpösykleille, joiden ennustettiin olevan tyypillisiä sisäisesti induktiokarkaistulle teräsputkelle. Simuloidun tuotantoprosessin eri vaiheissa havaitut faasimuutokset ja mikrorakenteet on karakterisoitu. Sen lisäksi on kehitetty algoritmit, jotka mahdollistavat mikrorakenteen ja kovuuden optimoinnin putken seinämän paksuuden läpi
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Al-Obaidi, Amar Baker Salim. "Induction Assisted Single Point Incremental Forming of Advanced High Strength Steels." Universitätsverlag der Technischen Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A31527.

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Induction Assisted Single Point Incremental Forming (IASPIF) is a die-less hot sheet metal forming. The IASPIF does not apply characteristic complex tooling like those applied in deep drawing and bending. In this thesis, induction heating was used to heat up the sheet while simultaneously forming with a tool. The research goal is to improve the formability of high strength steels by heating. The IASPIF consists of non-complicated set up that allows induction heating to be utilized through the coil inductor moved under the sheet and synchronized with the forming tool that moves on the upper side of the sheet. The advanced high strength steel alloys, DP980, DP600 and 22MnB5 steels, were investigated. The influence of induction heating on formability was evaluated by the maximum wall angle that can be achieved in a single pass. Additionally, tool diameter and tool feed rate was also varied. The most influencing parameters were tool feed rate, induction power, and the profile depth. A new forming strategy was also developed by control the heating temperature through coupling the formed profile depth with a successively increased tool feed rate. The forming forces of DP980 steel sheet, were reduced from 7 kN to 2.5 kN when forming process was performed at room and elevated temperature, respectively. Stretching stresses were developed during forming process causing a high reduction in the resulting wall part thickness. New findings in this investigation were the reverse relationship between the step-down depth and the thickness reduction percentage. The smaller the tool diameter, the better was the formability. The finite element simulation of the investigated forming process showed that the increase in heating temperature has a direct effect on rising the plastic strain from 0.2 at room temperature to 1.02 at 800 ◦ C. The maximum true strain achieved in the resulting wall part thickness was determined by FEM simulations and validated with experimental trials. The part shape accuracy was measured and the highest deflection was founded when the part was formed by the highest step-down depth. Moreover, the minimum deflection in the part shape was achieved by utilizing a high induction power in the experiments. Finally, the resulting mechanical properties of the 22MnB5 alloy sheet material were tailored during IASPIF. For this purpose, the sheets were locally heated by induction during the forming process and subsequently quenched at different rates. As a result, the produced tailored parts consist of three different regions, which consist of a ductile, transitional and hardened region. The proposed procedure allows forming and quenching at the same time without transfer and thus, process time was reduced.
Die induktionsgestützte, inkrementelle Blechumformung (englisch: Induction Assisted Single-Point Incremental Forming IASPIF) ist Warmumformprozess, bei dem keine komplexen Werkzeuge wie beim Tiefziehen und Biegen benötigt werden. Inhalt dieser Arbeit ist die inkrementelle Umformung eines Bleches mit gleichzeitig ablaufender induktiver Erwärmung. Das Forschungsziel bestand in der Verbesserung der Umformbarkeit von hochfesten Stahlwerkstoffen wie DP600, DP980 und 22MnB5 durch eine gezielte partielle Erwärmung. Der prinzipielle Aufbau des Versuchsstandes besteht aus einem Spuleninduktor, der unterhalb des umzuformenden Blechs platziert ist, und der synchron mit dem Werkzeug – einem Drückdorn – während des Umformvorganges verfährt. Ein wesentlicher Untersuchungsschwerpunkt bestand in der Ermittlung der Einflussgrößen auf den untersuchten IASPIF-Prozess. Für die Bewertung der Umformbarkeit wurden hierbei der maximal erreichbare Teilwandwinkel und die Profiltiefe, die in einem Umformdurchgang herstellbar waren, ermittelt und ausgewertet. Darüber hinaus konnten im Rahmen der Arbeit die Induktionsleistung des Generators, der Werkzeugdurchmesser und die Werkzeugvorschubgeschwindigkeit als relevante Prozessparameter identifiziert werden. Im Ergebnis der durchgeführten Untersuchungen zeigten die Werkzeugvorschubgeschwindigkeit und die Induktionsleistung einen wesentlichen Einfluss auf die erreichbare Profiltiefe. Aufbauend auf den erzielten Ergebnissen konnte eine prozessangepasste Umformstrategie entwickelt werden, bei der eine konstante Erwärmungstemperatur durch das Koppeln der momentanen Profiltiefe mit einer sukzessiv steigenden Werkzeugvorschubgeschwindigkeit erreicht wird. Weiterhin ließen sich die Kräfte bei der Umformung eines Stahlbleches aus DP980 von 7 kN (bei Raumtemperatur) auf 2,5 kN (bei erhöhter Temperatur) reduzieren. Aufgrund des mit einem Streckziehvorgang vergleichbaren Spannungszustandes während des Umformprozesses war eine starke Verringerung der resultierenden Wanddicke zu beobachten. Als neue Erkenntnis in dieser Untersuchung konnte die umgekehrte Beziehung zwischen der Zustelltiefe und dem Dickenreduktionsprozentsatz abgleitet werden. Aus der Finite - Elemente - Simulation des vorgestellten Umformprozesses wurde erkennbar, dass die Erhöhung der Erwärmungstemperatur einen direkten Einfluss auf die plastische Dehnung von 0,2 (bei Raumtemperatur) auf 1,02 (bei 800 °C) hat. Mittels der numerischen Simulation und der nachfolgenden experimentellen Validierung erfolgte darüber hinaus die Bestimmung der maximalen wahren Dehnung, die in der resultierenden Wanddicke erreicht wurde. Bei den Versuchen mit der größten Zustellung ließ sich durch die Bestimmung der Teileformgenauigkeit die höchste Abweichung von der Sollgeometrie CAD Modell feststellen. Abschließend wurde nachgewiesen, dass der IASPIF Prozess auch zur Einstellung maßgeschneiderter Bauteileigenschaften wie der resultierenden mechanischen Eigenschaften des Blechmaterials aus 22MnB5 einsetzbar ist. Zu diesem Zweck wurden die Bleche während des Umformprozesses lokal induktiv erwärmt und anschließend zur Einstellung des gewünschten Gefüges bei unterschiedlichen Abkühlgeschwindigkeiten abgeschreckt.
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Books on the topic "Induction Steel"

1

1925-, Stutz D. E., ed. Induction heat treatment of steel. Metals Park, Ohio: American Society for Metals, 1986.

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Kosti͡akov, V. N. Plazmenno-indukt͡sionnai͡a plavka. Kiev: Nauk. dumka, 1991.

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Iskierka, Sławomir. Analiza numeryczna procesu hartowania indukcyjnego z uwzględnieniem wzajemnych wpływów zjawisk elektromagnetycznysh, termicznych i mechanicznych. Częstochowa: Wydaw. Politechniki Częstochowskiej, 1997.

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Rowan, Henry M. The fire within: The story of Inductotherm Industries, Inc. and the man who built it. Cleveland, Ohio: Penton Pub., 1995.

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Workshop on Alternative Charge Materials for Electric Arc and Induction Furnaces (1994 Jamshedpur, India). Proceedings of the Workshop on Alternative Charge Materials for Electric Arc and Induction Furnaces, 14-16 December 1994. Jamshedpur: National Metallurgical Laboratory, Council of Scientific & Industrial Research, 1995.

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ZnO bao mo zhi bei ji qi guang, dian xing neng yan jiu. Shanghai Shi: Shanghai da xue chu ban she, 2010.

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Metallurgical treatment of steel in an induction-heated ladle. Luxembourg: Commission of the European Communities, 1987.

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12th International Conference on NDE in the Nuclear and Pressure Vessel Industries. ASM International, 1993.

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Heat treating library. Materials Park, Ohio: Heat Treating Society, 1995.

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(Editor), George Krauss, and George D. Pfaffmann (Editor), eds. Heat Treating: Including Steel Heat Treating in the New Millennium (06806G). ASM International, 2000.

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Book chapters on the topic "Induction Steel"

1

Dopkin, J., K. Sadeghipour, and K. Li. "Computer Aided Analysis of High Frequency Induction Heating Process of Steel." In Proceedings of the Thirtieth International MATADOR Conference, 493–500. London: Macmillan Education UK, 1993. http://dx.doi.org/10.1007/978-1-349-13255-3_63.

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Sridhar Raja, K. S., and V. K. Bupesh Raja. "Corrosion Studies on Induction Furnace Steel Slag Reinforced Aluminium A356 Composite." In Emerging Trends in Computing and Expert Technology, 94–100. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32150-5_9.

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Kim, M. H., Kyong Yop Rhee, Jai Sung Hong, and Young Sam Ham. "Effect of Tempering on the Wear Characteristics of Induction-Hardened SPS5 Steel." In Key Engineering Materials, 835–39. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.835.

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Mishra, Ankan, Sukhomay Pal, and Swarup Bag. "Electromagnetic Transient-Thermal Modeling of High-Frequency Induction Welding of Mild Steel Plates." In Advances in Simulation, Product Design and Development, 407–15. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9487-5_32.

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Álvarez, Ana I., Victor Cid, Gloria Pena, Jose Sotelo, and David Verdera. "Assisted Friction Stir Welding of Carbon Steel: Use of Induction and Laser as Preheating Techniques." In Friction Stir Welding and Processing VII, 117–26. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48108-1_13.

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Álvarez, Ana I., Víctor Cid, Gloria Pena, Jose Sotelo, and David Verdera. "Assisted Friction Stir Welding of Carbon Steel: Use of Induction and Laser as Preheating Techniques." In Friction Stir Welding and Processing VII, 117–26. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118658345.ch13.

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Phan, Tam Minh, Dae-Wook Park, Tri Ho Minh Le, and Jun-Sang Park. "Evaluate Healing Performance of Asphalt Mixture Containing Steel Slag by Using Induction and Microwave Heating." In Lecture Notes in Civil Engineering, 485–91. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5144-4_44.

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Arjun, S., T. Hemalatha, and C. Rajasekaran. "Partial Replacement of Steel Slag Aggregates in Concrete as Fine Aggregates (Induction Blast Furnace Slag)." In Lecture Notes in Civil Engineering, 771–80. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-3317-0_69.

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Lee, Jang Hyun, Kyung Ho Lee, and Jong Sung Yun. "An Electromagnetic and Thermo-Mechanical Analysis of High Frequency Induction Heating for Steel Plate Bending." In Experimental Mechanics in Nano and Biotechnology, 1283–86. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-415-4.1283.

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Sato, S., K. Sato, O. Tsukamoto, N. Amemiya, T. Takao, and H. Shimizu. "Applications of Superconducting Linear Induction Motor to Steel Making Processes and Development of Prototype Machine." In Advances in Superconductivity VII, 1247–50. Tokyo: Springer Japan, 1995. http://dx.doi.org/10.1007/978-4-431-68535-7_283.

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Conference papers on the topic "Induction Steel"

1

Yuan, Jiankun, Jinwu Kang, Yiming Rong, and Richard D. Sisson. "Development of a Computer Model for Induction Hardening of Steel." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42521.

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Induction hardening is an important manufacturing process to control the mechanical properties of metal parts where surface hardness is enhanced while the core retains the toughness. This paper presents the modeling and simulation of the induction hardening processes with the finite element analysis. A coupled electromagnetic-thermal analysis is applied to the induction heating process. The temperature distributions in parts are obtained in heating and quenching process. The induction heating and quenching are highly nonlinear processes because the materials properties of the parts are temperature dependent. The final hardening process involves the determination of martensite volume content and hardness value. An algorithm is utilized to determine the volume fraction of diffusion controlled metal phase transformation and martensite content. Finally, the hardness value is converted from martensite content. Results for a complex surface hardening are presented. The effects of input power, frequency and air gap on final hardened pattern are systematically studied.
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Dzliev, Soslan V., Aleksei A. Khorshev, Alena A. Zhukova, Ilya A. Tsvetkov, and Konstantin E. Pishchalev. "Influence of Magnetic Steel Induction Heating Power Density on Inductor Resistance Range." In 2019 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus). IEEE, 2019. http://dx.doi.org/10.1109/eiconrus.2019.8656819.

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Whittall, Thomas, and Konstantinos A. Skalomenos. "SEISMIC DESIGN OF STEEL FRAMES WITH INTENTIONALLY ECCENTRIC INDUCTION-HEAT TREATED STEEL BRACES." In 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research National Technical University of Athens, 2021. http://dx.doi.org/10.7712/120121.8819.20119.

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Cai, Jun, Leo Chuzhoy, Kenneth W. Burris, Douglas A. Rebinsky, Krishna S. Raichur, and Patrick H. Campbell. "Induction Hardening Simulation of Steel and Cast Iron Components." In International Off-Highway & Powerplant Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2002. http://dx.doi.org/10.4271/2002-01-1557.

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Wu, C. Y., and Y. M. Zhou. "Simulation on induction heating of large round steel billets." In 2012 International Conference on System Simulation (ICUSS 2012). IET, 2012. http://dx.doi.org/10.1049/cp.2012.0482.

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Demidovich, Victor, Yuri Perevalov, and Olga Demidovich. "Numerical Simulation of Induction Heating of Steel Plate Products." In Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/isees-18.2018.34.

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Onan, Mert, Kasım Baynal, H. İbrahim Ünal, and Furkan Katre. "Optimization of Induction Hardened AISI 1040 Steel by Experimental Design Method and Material Characterization Analysis." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87345.

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Nowadays, some of the steel parts have been applied induction hardening for better mechanical properties in the automotive and aerospace industry sectors. Induction hardening is commonly used in steels, are high magnetic permeability. Martensite formation was observed application as a result of non-diffusion transformation after induction hardening. At this period, there were chosen three factor such as power supplied, scan rate, distance between work piece and coil, were affected material properties. Developed response variables such as surface hardness and case depth were determined after the experiments were done in the industrial conditions. In this study, data were taken by Taguchi method using L27 experiment orthogonal arrays table. Analysis of Variance (ANOVA) was employed with the help of data taken and regression equation was determined. As a result of these experiments and analyses, the optimization of the process conditions for induction hardened steel was investigated. As a consequence of the optimization, microstructural characterization using Light microscopy was carried out to determine the effects of the hardness from the outer surface to the center and nevertheless transformations associated with structural changes are investigated and so that results are determined.
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Li, Zhichao (Charlie), Andrew Freborg, and Lynn Ferguson. "Effect of Preheat on Improving Beneficial Surface Residual Stresses During Induction Hardening Process." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8583.

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Applications of the induction hardening process have been gradually increasing in the heat treatment industry due to its energy efficiency, process consistency, and clean environment. Compared to traditional furnace heating and liquid quenching processes, induction hardening is more flexible in terms of process control, and it can offer improved part quality. The commonly modified parameters for the process include the inductor power and frequency, heating time, spray quench delay and quench severity, etc. In this study, a single shot induction hardening process of a cylindrical component made of AISI 4340 is modeled using DANTE®. It is known that the residual stresses in a hardened steel component have a significant effect on high cycle fatigue performance, with higher magnitudes of surface residual compression leading to improved high cycle fatigue life. Induction hardening of steel components produces surface residual compression due to the martensitic transformation of the hardened surface layer, with a high magnitude of compression preferred for improved performance in general. In this paper, a preheat concept is proposed with the induction hardening process for enhanced surface residual compression in the hardened case. Preheating can be implemented using either furnace or low power induction heating, and both processes are modeled using DANTE to demonstrate its effectiveness. With the help of computer modeling, the reasons for the development of residual stresses in an induction hardened part are described, and how the preheat can be used to improve the magnitude of surface residual compression is explained.
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Jeon, Hyun Bae, Tae Hoon Song, Sung Ho Park, Sun Chul Huh, and Won Jo Park. "Fatigue Crack Growth Behavior of High Carbon Steel (SM53C) by Using Induction Hardening." In ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72452.

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Recently, with the high performance and efficiency of machine, there have been required the multi-functions in various machine parts, such as the heat resistance, the abrasion resistance and the stress resistance as well as the strength. Fatigue crack growth tests were carried out to investigate the fatigue characteristics of high carbon steel (SM53C) experienced by high-frequency induction treatment. The influence of high-frequency induction treatment on fatigue limit was experimentally examined with the special focus on the variation of surface microstructure and the fatigue crack initiation and propagation through fractography. Also, the shape of hardening depth, hardened structure, hardness, and fatigue-fracture characteristics of SM53C composed by carbon steel are also investigated.
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Romero Rodríguez, Claudia, Stefan Chaves Figueiredo, Bernardino Chiaia, and Erik Schlangen. "Induction healing of concrete reinforced by bitumen-coated steel fibres." In 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures. IA-FraMCoS, 2016. http://dx.doi.org/10.21012/fc9.134.

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Reports on the topic "Induction Steel"

1

Rios, Orlando, William G. Carter, and Stefan Ulrich. Additive Manufacturing Consolidation of Low-Cost Water Atomized Steel Powder Using Micro-Induction Sintering. Office of Scientific and Technical Information (OSTI), April 2018. http://dx.doi.org/10.2172/1439146.

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Wilt, M. Inductive resistivity logging in steel-cased boreholes. SBIR Phase 2 progress report. Office of Scientific and Technical Information (OSTI), July 1999. http://dx.doi.org/10.2172/10201542.

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