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Добірка наукової літератури з теми "Alloyed steel"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Alloyed steel"

Tan, Zhaoqiang, Yong Liu, Xiaolin Huang, and Songlin Li. "Fatigue Behavior of Alloy Steels Sintered from Pre-Alloyed and Diffusion-Bonding Alloyed Powders." Metals 12, no. 4 (2022): 659. http://dx.doi.org/10.3390/met12040659.

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Porosity and phases are considered to be two key factors for the fatigue performance of powder metallurgy steels. In this paper, the fatigue strengths of the alloy steels sintered from two typical types of powders, pre-alloyed Fe-Cr-Mo (Astaloy CrM), and diffusion-bonding alloyed Fe-Cu-Mo-Ni (Distaloy AE), were comparatively analyzed in view of the geometry of porosity, the phases constitution, and fractography of fracture. Different modes of fatigue fracture were distinguished between the two materials. Namely, a trans-particle fracture is predominant in the Disitaloy AE steel due to the hete

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Mengaroni, Sabrina, Massimo Calderini, Giuseppe Napoli, Chiara Zitelli, and Andrea di Schino. "Micro-Alloyed Steel for Forgings." Materials Science Forum 941 (December 2018): 1603–6. http://dx.doi.org/10.4028/www.scientific.net/msf.941.1603.

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To fulfill the industrial demand of forged steels with high tensile properties and microstructural requirements coupled with reduced cost, the possibility to increase the properties of C-Mn steels by means of precipitation strengthening as achieved by micro-alloying (and without the addition of expensive elements such as Mo and Cr) has been evaluated. In order to do that, the effect of V addition has been exploited by means of metallurgical modelling followed by a laboratory ingot manufacturing. Heat treatment has been designed aimed to achieve the desired target tensile properties. Results sh

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UEJI, Rintaro. "Alloyed Steel(TWIP Steel, High Mn Steel)." Journal of the Japan Society for Technology of Plasticity 53, no. 620 (2012): 814–17. http://dx.doi.org/10.9773/sosei.53.814.

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Żółciak, Tadeusz, Piotr Wach, and Paweł Bilski. "Application of technical nitrogen during nitriding or nitrocarburizing alloyed steels." Inżynieria Powierzchni 25, no. 1-2 (2020): 20–30. http://dx.doi.org/10.5604/01.3001.0014.4476.

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In the present work technical nitrogen application for surface activation of alloyed steels with chrome, particularly stainless steel X20Cr13 during nitriding and carbonitriding was investigated .Hardness and microstructure of nitrided layers were examined. Possibility of using technical nitrogen containing 0,2%O2 for surface activation of X20Cr13 stainless steel was confirmed and activation conditions for investigated alloyed steels were determined.

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Verma, A., K. Gopinath, and B. Sarkar. "Boron Steel: An Alternative for Costlier Nickel and Molybdenum Alloyed Steel for Transmission Gears." Journal of Engineering Research [TJER] 8, no. 1 (2010): 12. http://dx.doi.org/10.24200/tjer.vol8iss1pp12-18.

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Case Carburized (CC) low carbon steels containing Ni, Cr and Mo alloying elements are widely used for transmission gears in automobile, as it possesses desired mechanical properties. In order to cut cost and save scarce materials like Ni and Mo for strategic applications, steel alloyed with Boron has been developed, which gives properties comparable to Ni-Cr-Mo alloyed steel. In the process of steel development, care was taken to ensure precipitation of boron which results in precipitation hardening. The characterization of the developed boron steel had exhibited properties comparable to Ni-Cr

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Brytan, Z. "The corrosion resistance of laser surface alloyed stainless steels." Journal of Achievements in Materials and Manufacturing Engineering 2, no. 92 (2018): 49–59. http://dx.doi.org/10.5604/01.3001.0012.9662.

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Purpose: of this paper was to examine the corrosion resistance of laser surface alloyed (LSA) stainless steels using electrochemical methods in 1M NaCl solution and 1M H2SO4 solution. The LSA conditions and alloying powder placement strategies on the material's corrosion resistance were evaluated. Design/methodology/approach: In the present work the sintered stainless steels of different microstructures (austenitic, ferritic and duplex) where laser surface alloyed (LSA) with elemental alloying powders (Cr, FeCr, Ni, FeNi) and hard powders (SiC, Si3N4) to obtain a complex steel microstructure o

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Song, Yue Peng, Xiao Zhang, and Guo Quan Liu. "Computer-Aided Optimized Design for Multi-Alloyed Steels Specifying Hardenability Requirements." Key Engineering Materials 353-358 (September 2007): 3112–15. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.3112.

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The Jominy end-quench curves of non-alloyed and alloyed steels can be predicted by nonlinear equation method. Without considering the interaction effects of alloying elements on the curves, however, the prediction for multi-alloyed steels may be different markedly from that experimentally determined. Hence, an improved mathematic model for predicting the Jominy end-quench curves of multi-alloyed steels was proposed by introducing a parameter named “alloying element interactions equivalent” to the nonlinear equations. With the improved model, the predicted Jominy curves agree very well with the

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Jung, Jae Hyuk, Sun Gil Kim, and Bruno C. De Cooman. "Mechanical Properties of Micro-Alloyed TRIP Steel." Materials Science Forum 654-656 (June 2010): 242–45. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.242.

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The micro-alloying concepts have been widely used as a way to optimize the microstructure evolution and improve mechanical properties of conventional constructional steels. In the current study, the effect of micro-alloying on the properties of a multi-phase TRIP steel is analyzed. The micro-alloying of TRIP steel was found to lead to an increase of the yield stress rather than the tensile strength. A physical metallurgical explanation of the effect is proposed.

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Svyazhin, Anatoly G., Ludmila M. Kaputkina, and Inga V. Smarygina. "The Low-Nickel Cryogenic Steel Alloyed by Nitrogen." Materials Science Forum 879 (November 2016): 1899–904. http://dx.doi.org/10.4028/www.scientific.net/msf.879.1899.

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New low-nickel Cr18Ni5Mn9Mo2N and Cr19Ni6Mn10Mo2N steels can be used up to-170 °C and differs in the highest level of durabilities in the hot-rolled and tempered from austenitic area state that provides its effective application in climatic conditions of the Arctic and Antarctic. Excess of durability over level, characteristic for traditional stainless steel of the Cr18Ni9 type, is provided due to additional solid solution hardening. Alloying with nitrogen to 0,18÷0,22% usual Cr18Ni9 steel has the smaller, but also high level of mechanical properties, differs in smaller thermal and mechanical

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Hafsham, R., M. S. Salwani, H. Mas-Ayu, and Rosdi Daud. "Flexural Performance of the Heat-Treated Boron Alloyed Steel." Materials Science Forum 909 (November 2017): 21–26. http://dx.doi.org/10.4028/www.scientific.net/msf.909.21.

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Boron alloyed steels, especially 22MnB5, have been the point of focus for the materials choice in hot stamping. Objective of this project is to analyze the effect of heat treatment on its flexural performance. In this paper, five conditions of boron steels are analyzed. Specimens consist of the as-received (A), hot pressed (H) and quenched boron steel (QA,QWR, QWC). Flexural test was conducted to give more evidence on the flexural strength of the boron steel based on their process of heat treatment. Result show that Boron steel 22MnB5 undergone quenching process by using water at room temperat

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Дисертації з теми "Alloyed steel"

Bertilsson, Anders. "Alternative welding methods for nitrogen alloyed steel." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-62142.

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This project explores the feasibility of the solid-state welding method direct-drive friction welding to be used as a joining method for the nitrogen alloyed steel Uddeholm Vanax SuperClean, produced via processes based on powder metallurgy. Vanax SuperClean cannot be welded using fusion welding methods where the base material melts, due to nitrogen escaping the material, resulting in inferior quality welds. The cost of the material motivates the use of Vanax SuperClean for critical parts in applications, combined with a less costly material for the remaining parts, causing alternative joining

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Peacock, Simon. "Mechanical properties of rotary forged sintered steel compacts." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319953.

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Dahle, Eivind Strand. "Grain Refinement of High Alloyed Steel With Cerium Addition." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16337.

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This master thesis has the objective to improve the mechanical properties of Super Duplex steel by adding Elkem Grain Refiner (EGR). EGR is commercial grain refiner where the active element is cerium. Cerium is a strong oxide and sulphide former whose inclusions are to act as sites for heterogeneous nucleation during casting. The cerium inclusions will form at low undercooling making it possible to grow equiaxed grains ahead of the solidifying front, reducing the size of the columnar zone normally seen in an ingot. By reducing the columnar zone the steel will have a larger zone of equiaxed, an

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Read, Howard Graham. "Atomic structure of mechanically alloyed metals." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389883.

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Yu, Dawei. "Welding metallurgy and toughness improvement for mild and low-alloyed steel electroslag weldments /." Full text open access at:, 1988. http://content.ohsu.edu/u?/etd,164.

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Tang, Zhenghua. "Optimising the transformation and yield to ultimate strength ration of Nb-Ti micro-alloyed low carbon line pipe steels through alloy and microstructural control." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07212007-110711.

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Gillström, Peter. "Alternatives to pickling; preparation of carbon and low alloyed steel wire rod /." Örebro : Örebro universitetsbibliotek, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-376.

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Alaoui, Mouayd Amine. "Oxidation, pickling and over-pickling mechanisms of high silicon alloyed steel grades." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066020.

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Les mécanismes d'oxydation, de décapage et sur-décapage d'un acier bas carbone est d'un acier fortement allié au silicium (1,6 et 3.2 % en masse de silicium) ont été étudiés. Le suivi de l'oxydation par thermogravimétrie et la caractérisation de la calamine des aciers fortement alliés au silicium a montré un effet très marquant de passivation de la couche de silice. Les calamines des échantillons modèles sont composées de couches d'hématite, magnétite et wüstite partiellement décomposée en fer et magnétite pour l'acier bas carbone. Pour l'acier au silicium, la fayalite est présente à l'interfa

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Wong, Chia Yuin. "Microstructure evolution in Nb alloyed Esshete 1250 creep resistant austenitic stainless steel." Thesis, Swansea University, 2008. https://cronfa.swan.ac.uk/Record/cronfa42426.

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The microstructure evolution of a commercial grade creep-resistant austenitic steel, namely Esshete 1250, was investigated under different creep temperature and stress conditions, with an overall aim of exploring the micorstructural relationship to creep rupture during high temperature application. Creep tests data was supplied by British Energy on temperatures varied from 550°C to 700°C for periods of up to 17 years. The literature review includes the study of various creep resistant alloys and a detailed investigation on the precipitation reactions that take place in creep resistant

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Jubica, Jubica. "Characterization of Secondary Carbides in Low-Alloyed Martensitic Model Alloy Tool Steels." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284449.

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The development of tool steels for making and shaping other materials requires a better understanding of the material's properties during manufacture. These high-quality steels include many alloying elements, which give increased hardness during tempering. For producing hardened microstructures, austenite generation is essential. The martensite formed by rapid quenching of austenite followed by tempering helps develop high strength steels. Studying carbide precipitation is a challenge as they are very small in size, present only in small volume fractions and high number densities. The carbide

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Книги з теми "Alloyed steel"

Hamzah, E. Strength and ductility of alloyed dual-phase steel. UMIST, 1993.

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Ulrich, Heubner, ed. Nickel alloys and high-alloy special stainless steels. Expert Verlag, 1987.

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Farrar, J. C. M. The alloy tree: A guide to low-alloy steels, stainless steels and nickel-base alloys. Woodhead, 2004.

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Ulrich, Heubner, ed. Nickel alloys and high-alloy special stainless steels. 2nd ed. Expert Verlag, 1998.

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Tylczak, J. H. Correlating abrasive wear to alloy additions in low-alloy steels. U.S. Dept. of the Interior, Bureau of Mines, 1986.

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Li͡akishev, N. P. Niobium in steels and alloys: Metallurgical aspects of niobium from mineral deposits, to alloy production and applications. Companhia Brasileira de Metalurgia e Mineração, 1985.

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R, Davis J., and ASM International. Handbook Committee., eds. Carbon and alloy steels. ASM International, 1996.

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Ulrich, Heubner, ed. Nickel alloys. Marcel Dekker, 1998.

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International Conference on Zinc and Zinc Alloy Coated Steel Sheet. (2nd 1992 Amsterdam, The Netherlands). 2nd International Conference on Zinc and Zinc Alloy Coated Steel Sheet: Galvatech '92 : Amsterdam, The Netherlands, September 8-10, 1992. Edited by Centre de recherches métallurgiques. Verlag Stahleisen mbH, 1992.

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Society, Iron and Steel, ed. Steel products manual.: Rolled floor plates, carbon, high strength low alloy, and alloy steel. Iron and Steel Society, 1991.

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Частини книг з теми "Alloyed steel"

Lung, Dieter. "Machinability of High-Alloyed Steel and Stainless Steel." In CIRP Encyclopedia of Production Engineering. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-642-35950-7_6699-3.

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Lung, Dieter. "Machinability of High-Alloyed Steel and Stainless Steel." In CIRP Encyclopedia of Production Engineering. Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-53120-4_6699.

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Lung, Dieter. "Machinability of High-Alloyed Steel and Stainless Steel." In CIRP Encyclopedia of Production Engineering. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-20617-7_6699.

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Sherif, Mohamed Y., Urszula Sachadel, Aidan Kerrigan, et al. "Novel Tough Micro-Alloyed Bearing Steel with High Hardenability." In Bearing Steel Technologies: 11th Volume, Advances in Steel Technologies for Rolling Bearings. ASTM International, 2017. http://dx.doi.org/10.1520/stp160020160160.

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Traint, Sandra, Ewald Werner, Andreas Pichler, and Peter Stiaszny. "Low Alloyed Dual-Phase and Multiphase Steel Strip." In Steels and Materials for Power Plants. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527606181.ch13.

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Gennesson, M., D. Daloz, J. Zollinger, et al. "Inoculation in Lab Scale Low Alloyed Steel Castings." In TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72526-0_54.

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Domşa, Şerban, Radu Orban, and Mihaela Fodor. "Sintered Structural Low Alloyed Steels Particulate Reinforced by High Speed Steel." In Materials Development and Processing - Bulk Amorphous Materials, Undercooling and Powder Metallurgy. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607277.ch52.

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Kwon, Yong Nam, Young Seon Lee, and Jung Hwan Lee. "Plastic Deformation Behavior of Micro-Alloyed Cold Forging Steel." In Advanced Materials Research. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-463-4.61.

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Clausen, Brigitte, Christoph Stöberl, Werner Trojahn, and Hans-Werner Zoch. "Improved Chemical Composition of Low Alloyed High Carbon Martensitic Bearing Steels for Higher Fatigue Strength." In Bearing Steel Technologies: 10th Volume, Advances in Steel Technologies for Rolling Bearings. ASTM International, 2014. http://dx.doi.org/10.1520/stp158020140039.

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Kalashnikov, A. S., P. A. Kalashnikov, and I. I. Marushchak. "Technological Peculiarities of Chemical Heat Treatment of Alloyed Steel Gears." In Proceedings of the 4th International Conference on Industrial Engineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95630-5_146.

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Тези доповідей конференцій з теми "Alloyed steel"

Tullmin, M., and C. M. Hansson. "Electrochemical Noise Measurements on Carbon and Stainless Steel Reinforcing Steels." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98372.

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Abstract Electrochemical noise measurements were performed on carbon steel and two stainless alloys exposed to a synthetic pore solution at various pH levels. The test results have confirmed the results of other initial research that stainless steel rebars are significantly more corrosion resistant compared with the carbon steel variety. The performance of the S31600 (UNS) alloy was, as expected, the best of the three alloys evaluated and this stainless steel withstood 16% Cl at a pH below 10 in these short term tests. Obviously, corrosive attack could be anticipated at longer test duration an

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Salamat, G., and R. G. Kelly. "Dissimilar Metal Crevice Corrosion of Highly Alloyed Stainless Steel." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94481.

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Abstract Highly alloyed stainless steels can suffer from dissimilar metal crevice corrosion when creviced with certain other stainless alloys. In order to understand this phenomenon better, the solution which forms inside such crevices was collected and analyzed with ion chromatography and capillary electrophoresis for its metal ion content. These analyses provided the data required to design bulk solutions for electrochemical measurements. Electrochemical measurements in these simulated crevice solutions were made and compared to measurements made in simple acidified chloride solutions. The s

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Sridhar, K., A. S. Khanna, K. Wissenbach, and M. B. Deshmukh. "Formation of Highly Corrosion Resistant Stainless Steel Surface Alloys for Marine Environments by Laser Surface Alloying." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98705.

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Abstract Austenitic stainless steels (SS) such as UNS S30403 are being used for numerous industrial applications due to their good mechanical properties and weldability. However in aggressive marine environments such as seawater, they suffer from localised corrosion. Even though newly developed highly alloyed SS’s possess very high pitting resistance, they are susceptible to the formation of secondary phases. In the present study, a laser surface alloying technique was employed for the formation of highly alloyed austenitic stainless steel surfaces on conventional 304 SS substrate. Microstruct

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Keserović, Amela, Ralph Bäßler, and Yustin Kamah. "Suitability of Alloyed Steels in Highly Acidic Geothermal Environments." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4031.

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Abstract This study aims to evaluate which of the materials currently available on the market could overcome the problem of corrosion and withstand highly aggressive conditions in the exploitation of geothermal resources in volcanic environments. Our investigations were triggered by the conditions on Lahendong geothermal field (North Sulawesi, Indonesia): well LHD-23 presents one of the greatest challenges due to its capacity of producing &gt; 20 MWe of energy from a single well and in the same time having very low pH (2 - 3) and relatively high chloride (1,500 mg/L) and sulphate (1,600 mg

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Gundel, P. H. "A Novel Oxygen Free Ferritic Nitro Carburizing Process." In IFHTSE 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.ifhtse2024p0366.

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Abstract Anti-wear, anti-galling and scratch resistance are well-known properties associated with FNC processes. The marked demand for expansion of the scope of processes in equipment available, has led to the development of tailored FNC process for application to low alloyed steel, and alloyed steel. The process had to be oxygen free, as the equipment is also applied in expanded austenite processes for corrosion resistant alloys. Utilizing our mass flow controller equipped furnaces the tight control of the parameters is possible resulting in high repeatability and a consistent compound layer

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Eisinger, N. C., J. R. Crum, and L. E. Shoemaker. "An Enhanced Superaustenitic Stainless Steel Offers Resistance to Aggressive Media." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03256.

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Abstract Marine applications require construction material to resist harsh environments, but yet must be economical to produce and buy. Alloys such as UNS N06686 or UNS N10276 exhibit excellent corrosion resistance, but at a high price. Other alloys, like those in the 6% molybdenum superaustenitic stainless steel (6%Mo SS) family are more economical, but sacrifice much of the corrosion resistance of the higher alloyed materials. Thus, an alloy that could approach the corrosion resistance of UNS N10276, but with a price near the 6%Mo SS alloys would satisfy both of the requirements for marine s

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Kirchheiner, R. R., F. Hofmann, Th Hoffmann, and G. Rudolph. "A Silicon Alloyed Stainless Steel for Highly Oxidising Conditions." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86120.

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Abstract The austenitic CrNi steel VDM alloy 1815 LCSi based on 18% Cr - 15% Ni with an addition of 4% silicon exhibits an excellent corrosion resistance in highly oxidising solutions. This resistance is due to the spontaneous formation of silicon and chromium oxide layers. The material is registered in the ASME-Code Case 1953 under the designation 1815 LCSi. Owing to the high silicon content, this alloy tends to precipitate various phases which reduces its resistance in the afore-mentioned solutions. Particularly critical is the precipitation of carbides and carbonitrides, since silicon incre

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Poznansky, A., and C. S. Nalbone. "Corrosion Resistance of a Highly Alloyed Duplex Stainless Steel." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87344.

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Abstract The corrosion resistance of Atlas Alloy 958 (J93404) a cast duplex stainless steel with 25Cr-4.5Mo-7Ni-0.2N, was evaluated in chloride-containing environments. The crevice corrosion resistance of the alloy was determined in both the welded and unwelded conditions. Potentiostatic and potentiodynamic tests in synthetic seawater (ASTM D 1141) and in a sodium chloride solution were employed to evaluate the pitting corrosion resistance of the alloy. The sulfide stress cracking resistance of the alloy was evaluated in the NACE solution.

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Bosch, Christoph, and Michael Billeke. "Improvement of Corrosion Resistance of Sheet Piling in Seawater." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3891.

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Abstract Development of structural steels with improved corrosion resistance is gaining significance for use in offshore structures. Corrosion of structural steel depends not only on various influencing factors such as location of seaport or seawater corrosivity zone the steel is exposed in, but also on the chemical composition of the steel itself. Against this background the influence of alloying additions of copper, chromium and nickel, which are known to be able to mitigate corrosion by seawater, was investigated aiming at an economic alloy modification of structural steels used for manufac

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Reihl, Edward, Dennis W. Rahoi, Ralph M. Davison, and Jan Olsson. "Corrosion Testing Leads to Industrial Scrubber Applications for a Highly Alloyed Stainless Steel." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86356.

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Звіти організацій з теми "Alloyed steel"

Hicho, G. E., and J. H. Smith. Mechanical properties and fracture toughness of AAR TC128 grade B steel and micro-alloyed, control-rolled steel, A 8XX grade B, from -80[degrees] F to + 73[degrees] F. National Institute of Standards and Technology, 1990. http://dx.doi.org/10.6028/nist.ir.90-4289.

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Hicho, George E. Crack arrest fracture toughness measurements of normalized and inclusion shape controlled AAR TC128 grade B steel, and micro-alloyed, control-rolled, and inclusion shape controlled A 8XX grade B steel. National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4501.

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Rosenfeld. L51686 Effect of Defect Size and Yield to Tensile Ratio on Plastic Deformation Capacity Pipeline Steels. Pipeline Research Council International, Inc. (PRCI), 1993. http://dx.doi.org/10.55274/r0010160.

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Micro-alloyed low-carbon linepipe steels offer an advantageous combination of high toughness and a low carbon equivalent (CE or Pcm) for good weldability. The continuing improvements in pipeline steel manufacturing practices have also led to pipeline steels with higher yield to tensile (Y/T) ratios and a corresponding reduction in strain hardening capacity. Potential users of high Y/T ratio pipeline steels are somewhat reluctant to modify their existing specifications. This is because they do not have the required information to judge the performance characteristics of such steels under a wide

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Schmidt, Walker. L51926 Effects of Welding on HAZ Softening of X70-X80 TMCP Linepipe Steels. Pipeline Research Council International, Inc. (PRCI), 2000. https://doi.org/10.55274/r0010657.

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Experimental work was done to evaluate the effects of welding on the hardness, tensile and toughness properties of the heat affected zone (HAZ) of a series of commercial high strength micro-alloyed linepipe steels, produced through controlled rolling and accelerated cooling (thermo-mechanical control process - TMCP). The test materials, representative of modern low carbon linepipe steels, were selected such as to cover a broad range of chemistries (alloy /micro-alloy designs) and mechanical properties (X 70 and X 80).

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Patchett, B. M., and A. C. Bicknell. L51706 Higher-Strength SMAW Filler Metals. Pipeline Research Council International, Inc. (PRCI), 1993. http://dx.doi.org/10.55274/r0010418.

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The welding of high strength steels in general, and for pipeline fabrication in particular, has shown that cracking due to hydrogen absorption during welding is more complex in these steels than in older, lower strength steels. In older steels, primary strengthening was accomplished with carbon, which caused hydrogen cracking in the base metal HAZ under reasonably predictable conditions involving microstructure, residual stress and hydrogen level. Pipeline steels were and are in the vanguard of change in strengthening philosophy. The change involves two areas of steel making, chemical composit

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Leis. L51845 Database of Mechanical and Toughness Properties of Pipe. Pipeline Research Council International, Inc. (PRCI), 2000. http://dx.doi.org/10.55274/r0010150.

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�The lower-strength grades of steel used for transmission pipelines into the 60s were much like those used in other steel construction in that era. These steels gained strength by traditional hardening mechanisms through chemistry changes, largely involving carbon and manganese additions. Improvement of these grades, primarily through control of ingot chemistry and steel processing, became necessary when running brittle fracture was identified as a failure mechanism in gas-transmission pipelines in the late 50s. Eventually, this avenue to increasing strength was exhausted for pipeline applicat

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Patil and Cerkovnik. PR-425-123722-R01 Internally Lined Steel Risers as an Alternative to CRAs. Pipeline Research Council International, Inc. (PRCI), 2013. http://dx.doi.org/10.55274/r0010573.

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Carbon steel and low alloy steel are the common, cost effective materials of choice for design of production risers in deep water. They are, however, often challenged by high stress and fatigue loadings. When production fluids are corrosive and or sour, steel risers may not be feasible without the protection from corrosive effects. To mitigate degradation, the only proven solution to date is the use of corrosion resistant alloys (CRA), either in homogeneous or clad/lined steel pipe product. However, corrosion resistant alloys are very expensive and market supply is limited due to the number of

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Alexandrov, Boian. PR-650-174516-R01 Corrosion Resistant Weld Overlays for Pipeline Installations. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012108.

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Pipeline failure due to corrosion is a common problem in the oil and gas and petrochemical industry. A cost-effective way to prevent these failures is the application of corrosion-resistant weld overlays (WOLs) onto the internal surface of line pipe. A WOL is a deposition of a filler metal - such as a nickel-base alloy - onto the surface of a part - usually carbon or low alloy steels - to introduce desired surface properties to the original substrate [1]. As such, the service life of the substrate is increased which results in reduced costs to industries such as oil and gas and petrochemical a

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Melton and Bertaso. L52016 Active Flux GTAW Welding Process for Carbon Steel Line Pipe Applications - Phase 1. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0010376.

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The Gas Tungsten Arc Welding (GTAW) process has been used for many years in the joining of carbon steel, alloy steel and non-ferrous alloys. Its capacity to deposit an external root, the ability to choose filler metals for a wide variety of base metals, and its favorable deposition characteristics make this a versatile process which is associated with low defect susceptibility, and excellent weld metal properties. Unfortunately, the GTAW process has not historically been associated with high productivity rates. Past efforts to enhance productivity through "hot wire" technology have improved th

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Wang, Yong-Yi, Zhili Feng, Wentao Cheng, and Sudarsanam Suresh Babu. L51939 Weldability of High-Strength Enhanced Hardenability Steels. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0010384.

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Since the 1970s, the development of high-strength pipeline steels has followed the route of progressively reduced harden ability through lower carbon and alloying element contents. Micro-alloying, controlled rolling (CR), and thermo-mechanical controlled processing (TMCP) have been used extensively to achieve the high-strength and other material property requirements despite the trend towards lower carbon content. The primary driving force behind the evolution of these alloying and processing strategies stems from the concerns over the weld ability, particularly the hydrogen induced cracking (

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