Academic literature on the topic 'Chemical composition of steel'

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Journal articles on the topic "Chemical composition of steel"

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Semenovskyi, O. Ye, and L. L. Titova. "Optimization of chemical composition of steel for gearweels of agricultural industry engineering." Naukovij žurnal «Tehnìka ta energetika» 11, no. 4 (2020): 123–29. http://dx.doi.org/10.31548/machenergy2020.04.123.

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Development of new steels in mechanical engineering to create alloys with predetermined properties that can minimize material and labor costs during their processing. Optimization of the chemical composition of the alloy based on the analysis of the impact of complex alloying on the structure and consequently on the manufacturability of steel. This will reduce the level of internal intensities in the heat treatment process. Based on the analysis of existing trends in mechanical engineering, it is established that the complexity of modern parts of gearweels imposes on the material increasing te
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Bolshakov, Vladimir, Nataliia Kalinina, Diana Нlushkova, Igor Kіrichenko, Alexander Voronkov, and Luidmila Kostina. "Material Science Aspects of Alloy Modification by Nanocompositions of Plasma-Chemical Synthesis." Key Engineering Materials 864 (September 2020): 278–84. http://dx.doi.org/10.4028/www.scientific.net/kem.864.278.

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Crystallographic characteristics of nanodispersed materials obtained by plasma-chemical synthesis were studied. Using industrial equipment for plasma-chemical synthesis the nanodispersed powders of high-melting carbide, nitride, carbonitride and silicide class compounds based on titanium, magnesium, aluminium, silicon were obtained. Technology for synthesis of powder fraction less than 100 nm was developed. The efficiency of nanodisperce compositions use in smelting of structural steels was determined. In the result of 10Г2С steel modification with Ti (CN) nanopowder strength, plastic properti
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Lobanova, L., and M. Lobanov. "OPTIMIZATION OF THE CHEMICAL COMPOSITION OF SUPERMARTENSITIC STAINLESS STEEL USING THERMODYNAMIC CALCULATIONS." Bulletin of the South Ural State University Series ‘Metallurgy’ 22, no. 2 (2022): 14–22. http://dx.doi.org/10.14529/met220202.

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Supermartensitic steels have a unique complex of chemical and mechanical properties, so pipes made of these steels have found their application in the oil and gas industry. However, these steels tend to form a banding structure. The banding structure is the cause of the products properties anisotropy and in addition can lead to the semi-finished products destruction at the production stage. In this work, the steel of the supermartensitic class 10Kh13N3MFB was investigated for its tendency to form a defect “banding” in the structure. For this, thermodynamic calculations and mathematical modelin
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Qiao, Gui-ying, Xiao-wei Chen, Zhi-en Zhang, et al. "Mechanical Properties of High-Nb X80 Steel Weld Pipes for the Second West-to-East Gas Transmission Pipeline Project." Advances in Materials Science and Engineering 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/7409873.

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The mechanical properties of steel pipe have great effects on the integrality and operation safety of gas transmission pipeline. In order to reduce the cost of the steel pipe, the high-Nb X80 pipeline steels with the different alloying systems have been used in the Second West-to-East Gas Transmission Pipeline Project. Nevertheless, an investigation into the effects of chemical composition on the mechanical properties of steel pipes is lacking. In this work, the chemical composition and mechanical properties of high-Nb X80 grade steel pipes with a diameter of ϕ1,219 mm and a wall thickness of
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Podolskyi, R. V., Е. А. Safronova, O. Ye Merkulov, G. A. Kononenko, O. I. Babachenko, and O. L. Safronov. "Analysis of compliance of experimental steels for railway rails with modern standards of Ukraine and the EU." Fundamental and applied problems of ferrous metallurgy 36 (2022): 362–69. http://dx.doi.org/10.52150/2522-9117-2022-36-362-369.

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The process of operating vehicles determines the interaction of the wheel and rail. Traffic safety and the main technical and economic indicators of track management and rolling stock largely depend on these parameters. The result of this interaction are changes in the metal, which arise from rolling friction and especially from the friction of the wheel sliding on the rail during braking, due to these changes, the wheels of the rolling stock wear out. The purpose od the work is to research of the microstructure and mechanical properties of steels of promising chemical compositions to meet mod
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Mishchenko, Valeriy, Alona Kripak, and Dmytro Tonkonoh. "Developing the optimal chemical composition of heat-resistant Cr-Ni steel for aerospace equipment." Eastern-European Journal of Enterprise Technologies 6, no. 12 (126) (2023): 16–21. http://dx.doi.org/10.15587/1729-4061.2023.288224.

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The object of research in this work is the processes of forming the microstructure and mechanical properties of heat-resistant steels depending on their chemical composition. The microstructure and high-temperature mechanical properties of austenitic heat-resistant chrome-nickel steels of the proposed chemical composition were investigated in the work. The microstructure study determined the grain size and topography of inclusions in steels. Based on the results of mechanical tests, a multifactorial experiment was planned, which made it possible to establish the relationship between the mechan
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Uzun, Ramazan, Ümran Başkaya, and Yasemin Kılıç. "Effect of Chemical Composition and Annealing Parameters for Advanced Packaging Steel Applications." Sakarya University Journal of Science 29, no. 2 (2025): 191–99. https://doi.org/10.16984/saufenbilder.1599129.

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Packaging steels are widely used across a broad range of industries, from food and beverage to chemical products, for the protection, transportation and storage of goods. In this study, the effects of chemical composition and annealing parameters on the phase transformation behavior, microstructure, and mechanical properties of packaging steels were investigated. Two steel samples, Steel A and Steel B, with different chemical compositions (designed according to ASTM A623-22 standard limitations), were prepared using a vacuum induction melting (VIM) furnace. Within the scope of simulation studi
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Ding, Beidou, Naiqiang Xiao, Shuxun Zhang, and Yong Wang. "Research on NDT Technology in Inference of Steel Member Strength Based on Macro/Micro Model." Mathematical Problems in Engineering 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/4393279.

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In consideration of correlations among hardness, chemical composition, grain size, and strength of carbon steel, a new nondestructive testing technology (NDT) of inferring the carbon steel strength was explored. First, the hardness test, chemical composition analysis, and metallographic analysis of 162 low-carbon steel samples were conducted. Second, the following works were carried out: (1) quantitative relationship between steel Leeb hardness and carbon steel strength was studied on the basis of regression analysis of experimental data; (2) influences of chemical composition and grain size o
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Povorotnia, I. R., O. A. Safronova, R. V. Podolsky, and E. V. Oliinyk. "Influence of chemical composition on the phase structure and hardness of carbon steel for railway axles after deformation and heat treatment." Fundamental and applied problems of ferrous metallurgy, no. 38 (2024): 656–71. https://doi.org/10.52150/2522-9117-2024-38-656-671.

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Given the considerable number of complex approaches using information technologies to justify the choice of the content of chemical elements in steel and the limitations inherent in them, the use of the concept of directional chemical bonding is proposed, which ensures high predictive accuracy and obtaining the necessary properties at the level demanded by the consumer. The paper analyzes the requirements of regulatory documentation regarding the chemical composition, namely the content of the main components such as carbon, manganese and silicon, in steel for railway axles of grades EA1N, F a
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Trzaska, Jacek, and Wojciech Sitek. "A Hybrid Method for Calculating the Chemical Composition of Steel with the Required Hardness after Cooling from the Austenitizing Temperature." Materials 17, no. 1 (2023): 97. http://dx.doi.org/10.3390/ma17010097.

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The article presents a hybrid method for calculating the chemical composition of steel with the required hardness after cooling from the austenitizing temperature. Artificial neural networks (ANNs) and genetic algorithms (GAs) were used to develop the model. Based on 550 diagrams of continuous cooling transformation (CCT) of structural steels available in the literature, a dataset of experimental data was created. Artificial neural networks were used to develop a hardness model describing the relationship between the chemical composition of the steel, the austenitizing temperature, and the har
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Dissertations / Theses on the topic "Chemical composition of steel"

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Nathoo, Jeeten. "Optimisation of electrolyte composition and operating parameters for the electropolishing of 304 stainless steel." Master's thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/5430.

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Hadley, John Willam. "The influence of chemical composition on the tribological performance of middle distillate fuels in steel on steel contacts." Thesis, Liverpool John Moores University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244443.

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Akeer, Emad S. "Effect of Carbon Steel Composition and Microstructure on CO2 Corrosion." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1399315460.

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Alyaz, Serhat. "Effects Of Heat Treatment And Chemical Composition On Microstructure And Mechanical Properties Of Hadfield Steels." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/2/776526/index.pdf.

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The aim of this thesis is to investigate the effects of Mn content and alloying additions such as Cr and Mo, and various heat treatment procedures on both microstructure and mechanical properties of austenitic manganese (Hadfield) steels. For this purpose, steels with two different Mn content were considered (12-14 Mn, 16-18 Mn). First, five different heat treatment procedures were applied to the as-cast 12-14 Mn specimens to decide the procedure resulting the optimum tensile properties. Then, the specimens having various amounts of Mn, Cr and Mo were cast and heat-treated to investigate the e
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Pimentel, Marcelo Francisco. "Influência da composição química e da microestrutura na usinabilidade do aço de corte fácil com adição de chumbo (SAE12L14) /." Guaratinguetá : [s.n.], 2006. http://hdl.handle.net/11449/97098.

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Orientador: Marcelo dos Santos Pereira<br>Banca: Humberto Lopes Rodrigues<br>Banca: César Alves da Silva Leandro<br>Resumo: Nos componentes mecânicos em aço, a operação de usinagem pode representar mais de 50% do custo de produção. Por isso, tem-se procurado, com o desenvolvimento tecnológico, obter materiais que respondam adequadamente à solicitação de boa usinabilidade. No caso dos aços para construção mecânica, dentre os fatores que influenciam a usinabilidade, tem-se como principal fator a microestrutura do material, que por sua vez é definida pela composição química, tratamento térmico e
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Pimentel, Marcelo Francisco [UNESP]. "Influência da composição química e da microestrutura na usinabilidade do aço de corte fácil com adição de chumbo (SAE12L14)." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/97098.

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Made available in DSpace on 2014-06-11T19:28:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-01-31Bitstream added on 2014-06-13T20:58:34Z : No. of bitstreams: 1 pimentel_mf_me_guara.pdf: 1070534 bytes, checksum: 041ac691a65005dd8019ca974206734b (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Nos componentes mecânicos em aço, a operação de usinagem pode representar mais de 50% do custo de produção. Por isso, tem-se procurado, com o desenvolvimento tecnológico, obter materiais que respondam adequadamente à solicitação de boa usinabilidade. No caso dos
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QUEIROZ, FERNANDA M. "Caracterizacao eletroquimica, quimica e morfologica de aco 'galvannealed' comercial." reponame:Repositório Institucional do IPEN, 2003. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11080.

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Made available in DSpace on 2014-10-09T12:48:01Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:05Z (GMT). No. of bitstreams: 1 09457.pdf: 6812101 bytes, checksum: 35494be3477476dfbf537e0b66e982b7 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Fager, Fredrick, and Serg Chanouian. "Nuclear Waste Canister : Evaluating the mechanical properties of cassette steel after casting." Thesis, KTH, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209803.

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Företaget Svensk Kärnbränslehantering AB (SKB) håller på att utveckla en slutförvaringskapsel som kommer innehålla avfall från den svenska kärnkraften. Det är dock fortfarande en process under utveckling och därför undersöks olika typer av metoder och kapselmaterial för att kunna tillverka en hållbar och säker kapsel. Kapseln består av ett hölje av kopparrör med svetsad botten och lock och en insats med stållock. Insatsen är en cylindrisk konstruktion  av segjärn och innehåller en svetsad stålkassett för att skapa utrymmen till det använda kärnbränslet. Insatsen innehåller bland annat stålrör
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Dodangoda, Maneesha T. "Improving the fire resistance of cold-formed steel frame wall systems using enhanced plasterboards." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/122456/1/Maneesha_Dodangoda_Thesis.pdf.

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This thesis combines the knowledge of science and engineering to develop gypsum based plasterboards for enahnced fire resistance in conjuction with light gauge steel framed (LSF) wall systems. Thermo-physical property tests, fire tests, mechanical property tests and heat transfer numerical modelling were used as the main tools of this research. The thesis developed a new gypsum-based plasterboard with enhanced fire resistance using a locally mined filler material, diatomite, which can improve the Fire Resistance Levels of single and double plasterboard lined LSF wall systems significantly.
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Pu, Xiaoxue. "Thermomechanical study of the gigacycle fatigue behavior of pure iron and carbon-manganese steels : influence of chemical composition and microstructure on damage and crack initiation mechanism." Thesis, Paris 10, 2019. http://www.theses.fr/2019PA100051.

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Ce travail tente de mieux comprendre les dommages par fatigue dans les aciers à ferrite-perlite dans la fatigue à très grand nombre de cycles (VHCF). Les influences de deux paramètres, le pourcentage de phase perlite et le pourcentage d'atomes interstitiels libres dans une solution solide, sont étudiées pour comprendre les mécanismes de dissipation en fatigue à 20 kHz. Une thermographie infrarouge in situ est réalisée pour enregistrer les changements de température, tandis que des observations au microscope sont menées pour étudier le mécanisme de dissipation. Pour les matériaux de BCC, sous f
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Books on the topic "Chemical composition of steel"

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Darrell, Koza, and Cleef-Toedt Kathleen Van, eds. Chemical composition of everyday products. Greenwood Press, 2005.

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SHAHIN, MISHRA HARSHA PATHAN. CHEMICAL COMPOSITION OF KULTHI SEEDS. LAP LAMBERT ACADEMIC PUBL, 2011.

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S, Belton P., ed. The chemical physics of food. Blackwell Pub., 2007.

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1931-, Rossiter Bryant W., and Hamilton John F, eds. Determination of chemical composition and molecular structure. Wiley, 1987.

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Silveston, Peter L. Composition modulation of catalytic reactors. Gordon and Breach Science, 1998.

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American Society for Testing and Materials. ASTM chemical and spectrometric test methods for steel. ASTM, 1992.

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Hämäläinen, Markku. Principal variations in the chemical composition of peat. Swedish University of Agricultural Sciences, Dept. of Chemistry, 1991.

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L, Fulmer H., and Ontario. Dept. of Agriculture., eds. Breakfast foods: Their chemical composition, digestibility and cost. Dept. of Agriculture, 1997.

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Hayes, John, Shane T. McDonald, and David Bolliet. Chemesthesis: Chemical touch in food and eating. John Wiley & Sons, Inc., 2016.

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E, Sikorski Zdzisław, ed. Chemical & functional properties of food proteins. Technomic Pub. Co., 2001.

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Book chapters on the topic "Chemical composition of steel"

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Schlegel, Joachim, and Till Schneiders. "Chemical Compositions and Grades." In Hot Work Tool Steel. Springer Fachmedien Wiesbaden, 2024. http://dx.doi.org/10.1007/978-3-658-43016-0_2.

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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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Weidner, Anja, Ruben Wagner, Mikhail Seleznev, and Horst Biermann. "Analysis of Detrimental Inclusions in Steel and Aluminum." In Multifunctional Ceramic Filter Systems for Metal Melt Filtration. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-40930-1_25.

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AbstractThis chapter presents results on the analysis of nonmetallic as well as intermetallic inclusions within a metal matrix. In both, steel and aluminum matrix these impurities cause detrimental effects during production as well as in service, e.g. under mechanical load. In steel, nonmetallic inclusions originate from the steelmaking process and range in the magnitude of ppm. In recycled aluminum alloys, iron-rich intermetallic phases exhibit a volume fraction in the range of percent caused by insufficient scrap separation. Both types of detrimental inclusions/precipitates were investigated
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Jiang, Y. F., H. Y. Li, J. Chen, X. Q. Shi, and Y. X. Zhu. "Study on Composition Design of Enamel Coating and Its Resistance to Active Metal Vapor Corrosion." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_36.

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AbstractAfter evaporation of cerium metal (simulated radioactive substance) in a stainless steel plate in a production process, Ce and Fe elements are interdiffused at the bonding interface and Ce-Fe solid solution is formed. There are problems such as incomplete recovery of attached materials and increased surface roughness at the interface, which cannot be reused. In order to reduce radioactive iste generation, metallic enamel coating is prepared on stainless steel substrate with SiO2, Al2O3, Na2O, K2O, CaF2 and CoO and its resistance to active metal vapor corrosion at high temperature is st
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Fakić, Belma, and Diana Ćubela. "Martensitic Transformation in Semiaustenitic Stainless Steel 17-7PH with Modified Chemical Composition." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-95194-7_43.

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Pan, Tao, Caifu Yang, and Hang Su. "Study of Chemical Composition and Thermal Stability of Reverted Austenite in Qlt-Treated 9%Ni Steel." In HSLA Steels 2015, Microalloying 2015 & Offshore Engineering Steels 2015. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119223399.ch15.

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Pan, Tao, Caifu Yang, and Hang Su. "Study of Chemical Composition and Thermal Stability of Reverted Austenite in QLT-Treated 9%Ni Steel." In HSLA Steels 2015, Microalloying 2015 & Offshore Engineering Steels 2015. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48767-0_15.

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Kobasko, Nikolai I. "Correlation Between Chemical Composition of Steel, Optimal Hardened Layer, and Optimal Residual Stress Distribution." In Film and Nucleate Boiling Processes. ASTM International, 2011. http://dx.doi.org/10.1520/stp49334t.

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Kobasko, Nikolai I. "Correlation Between Chemical Composition of Steel, Optimal Hardened Layer, and Optimal Residual Stress Distribution." In Film and Nucleate Boiling Processes. ASTM International, 2011. http://dx.doi.org/10.1520/stp153420120005.

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Fakić, Belma, and Diana Ćubela. "Characterisation of 17-7PH Steel of Modified State RH 950 with Modified Chemical Composition." In New Technologies, Development and Application VI. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-31066-9_8.

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Conference papers on the topic "Chemical composition of steel"

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Boellinghaus, Th, and H. Hoffmeister. "Hydrogen Permeation in Supermartensitic Stainless Steels Dependent on Heat Treatment and Chemical Composition." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00141.

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Abstract Hydrogen might cause severe degradation of supermartensitic stainless steels, if they are activated during exposure to sour environments. Consistent and comprehensive data for hydrogen transport in these materials are thus required to support, in particular, modelling of hydrogen assisted cracking as a part of life time assessment of welded steel components. In addition to previously published diffusion coefficients and subsurface concentrations of a supermartensitic stainless steel further data dependent on heat treatment are provided by this contribution. Furthermore, a higher alloy
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Barone, G. A., D. A. Smith, and M. Higgins. "Protective Chemical Vapor Deposition Coatings for Stainless Steel Surfaces." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08191.

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Abstract A growing application area is the use of protective coatings to reduce corrosion of stainless steel components exposed to hydrochloric acid (HCl) and sea water. In this presentation discussion will be focused on chemical vapor deposition (CVD) coatings for protection against corrosion caused by HCl and salt environments. Initial discussion will be on the process of applying CVD coatings. The CVD coatings discussed in this presentation are amorphous silicon coatings developed specifically for stainless steel. Examples will be shown of application of CVD coatings to a wide variety of ge
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Paolinelli, L. D., T. Pérez, and S. N. Simison. "The Influence of Steel Microstructure, Chemical Composition and Pre-Corrosion on CO2 Corrosion Inhibitor Efficiency." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07311.

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Abstract The influence of steel microstructure, pre-corrosion period and 1 %Cr content addition on CO2 corrosion susceptibility of C-Mn steels and on the inhibitor performance has been studied. In a previous paper, we have shown that the addition of 1 %Cr has a remarkable detrimental effect on inhibitor performance1. Two carbon steels with two different microstructures (annealed, and quenched and tempered (Q&amp;T)) were tested in a deoxygenated 5% wt. NaCl solution, saturated with CO2 at 40 °C, pH 6. The performance of a commercial imidazoline-based product to control CO2 corrosion was studie
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Yaguchi, Masatsugu, Tomoaki Hamaguchi, Kazuhiro Miki, Kyohei Nomura, and Nobuyoshi Komai. "Effects of Chemical Composition and Heat Treatment on Creep Properties of ASME Grade 91 Type Steel." In AM-EPRI 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.am-epri-2024p1216.

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Abstract The effects of chemical composition and heat treatment on the creep properties of ASME Grade 91 type steel were experimentally investigated using materials whose chemical compositions and heat treatment conditions in the steel making process were completely controlled. Regarding chemical composition, only the Al, Cr, and Ni contents were systematically varied while keeping the contents of the other elements and heat treatment conditions constant. Regarding heat treatment, the normalizing and tempering temperatures were varied while keeping the contents of chemical components constant.
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Mougin, J., M. S. Cayard, R. D. Kane, B. Ghys, and C. Pichard. "Sulfide Stress Cracking and Corrosion Fatigue of Steels Dedicated to Bottom Hole Assembly Components." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05085.

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Abstract Bottom hole assembly components may be in contact with sour environments depending on the oil field. In this respect, the steels used to manufacture these components have to be resistant to various in-service conditions, including aggressive environments (containing H2S, CO2, O2, chlorides), static and dynamic mechanical stresses. In this respect, sulfide stress cracking and corrosion fatigue tests were conducted to study how a corrosive environment containing H2S and in-service loading affect the serviceability of different steel grades designed to be used for components such as dril
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AlMahamedh, Hussain H., and Ali H. AlShawaf. "Premature Corrosion Attack of Stainless Steel Pipes and Welds." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20325.

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Abstract Newly constructed Stainless Steel Pipes experienced multiple leaks during commissioning. The different sizes pipe were constructed of 316L and 304L stainless steel at one of the Saudi Basic Industries Corporation (SABIC) affiliates. A failure investigation was performed to identify the root cause of the leaks. Samples were cut out of the pipes for analytical study. Scanning Electron Microscopy (SEM) coupled with Energy Dispersive Spectroscopy (EDS) was used to study the corrosion damage morphology and the chemical compositions of the corrosion products. Cross sectional samples, out of
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Byrne, G., R. Francis, G. Warburton, and M. Maligas. "The Selection of Superduplex Stainless Steel for Oilfield Applications." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04123.

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Abstract The combination of high strength and corrosion resistance makes super duplex stainless steel attractive for a number of applications both in sour process fluids and seawater. Several superduplex alloys exist and each has its own proprietary chemical composition and UNS designation. This paper considers one such UNS designation and shows that a wide range of properties is possible. Superduplex materials are normally specified with a minimum PREN value. To achieve this value, chemical composition is critical and likewise careful processing is necessary to achieve optimum properties incl
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Wilson, Brian. "Measuring Pipeline Chemical Composition Using Laser Induced Breakdown Spectroscopy (LIBS) Technology." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18193.

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ABSTRACT Recent PHMSA safety rules governing the operation of gas pipelines require operators to ensure material records are 100% traceable, verifiable, and complete (TVC) within the guidelines for the Pipeline Material Verification process defined under 192.607. Testing for chemical composition is a critical input where records are incomplete and while performing grade estimations for MAOP reconfirmation. Emerging non-destructive technology using portable handheld laser induced breakdown spectroscopy (LIBS) for in-situ analyses offers one NDE methodology for assessing pipeline steel compositi
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Akeer, Emad, Bruce Brown, and Srdjan Nesic. "The Influence of Mild Steel Metallurgy on the Initiation of Localized CO2 Corrosion in Flowing Conditions." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02383.

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Abstract The environmental conditions encountered in oil and gas wells can cause severe corrosion to mild steel tubing and pipelines and the microstructure and chemical composition of steel are considered to be important variables that affect the resistance of steel to corrosion. Five different pipeline steels with different chemical composition and microstructure were chosen to investigate the effect of their metallurgy on the properties of iron carbonate and related corrosion phenomena that could lead to localized corrosion. The effect of a high liquid flow rate on a pre-formed iron carbonat
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Orr, J. T., R. S. Fashho, M. C. Burrell, P. C. Sander, and L. D. Rabideau. "Corrosion Behavior of Three Steels in High Temperature Water." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01252.

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Abstract The corrosion behavior of three steels in high temperature water was compared: a low-alloy steel (ASTM A-508), a cast martensitic steel (CA-6NM, UNS J91540) and 403 stainless steel (UNS S40300). Test specimens were exposed to mildly alkaline solution at 260 °C for up to 5,000 hours. Several surface conditions were used, including chemically passivated and electropolished surfaces. The corrosion films consisted of ferrite spinel crystals (AFe2O4) with some basal chromite spinel (ACr2O4) for the steels with higher Cr content. Total corrosion and corrosion product release were also quant
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Reports on the topic "Chemical composition of steel"

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Moghissi. L51914 Interdependent Effects of Bacteria Gas Composition and Water Chemistry on Internal Corrosion. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0010433.

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A recent Office of Pipeline Safety survey found that corrosion caused 17 to 20 percent of pipeline failures. Of those corrosion failures, roughly half resulted from internal corrosion. In pipelines, internal corrosion is caused by produced (carry-over) or condensed water that contains dissolved gas and/or bacteria. In many cases, chemicals with inhibiting or biocidal properties are added to mitigate corrosion. The internal corrosion in many systems occurs under slowly flowing conditions at ambient temperatures (e.g., relatively low temperature of about 15.5�C (60�F)). The overall objectives of
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Hill, Richard, and Aquiles Perez Molinari. PR-334-174504-R01 Suitability of Line Pipe Materials for Sour Service Literature Research Summary. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011496.

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Literature search focused on contributing factors for the appearance of near surface hard zones in line pipe steels manufactured using TMCP plate has been developed. Additional literature search was conducted on the influence of near surface hard zones on sulfide stress cracking of line pipe steels manufactured using TMCP plate. It can be inferred from the collective research evaluated that the chemical composition, rolling temperatures, scale formation during hot rolling and the accelerated cooling process contribute to the likelihood of forming near surface hard zones in TMCP plates used for
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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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Thurston, Alison, Karen Foley, Shelby Rosten, Susan Taylor, Robert Haehnel, and Robyn Barbato. Microbial activity in dust-contaminated Antarctic snow. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47681.

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During weather events, particles can accumulate on the snow near the Pegasus ice and Phoenix compacted-snow Runways at the US McMurdo Station in Antarctica. The deposited particles melt into the surface, initially forming steep-sided holes, which can widen into patches of weak and rotten snow and ice. These changes negatively impact the ice and snow runways and snow roads trafficked by vehicles. To understand the importance of microbes on this process, we examined deposited dust particles and their microbial communities in snow samples collected near the runways. Snow samples were analyzed at
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Tandon, Samarth, and Ravi Krishnamurthy. PR-328-223812-R01 Tools and Methods to Assess Pipe Material Properties from Inside the Pipeline. Pipeline Research Council International, Inc. (PRCI), 2023. http://dx.doi.org/10.55274/r0000047.

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With the energy transition to alternative fuels like ethanol and hydrogen, the use of existing pipeline networks to transport these fuels would be the most economical. Pipeline tensile and fracture toughness material property characterization would be essential for fitness-for-service for alternate fuel transportation. Pipeline and Hazardous Materials Safety Administration (PHMSA) Gas Transmission 49 Code of Federal Regulations (CFR) Part 192 states that if there is missing or inadequate material documentation, an operator must "implement a program to test pipe samples to establish material pr
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Roberts, M. J., A. A. Garrison, E. C. Muly, and C. F. Moore. On-line chemical composition analyzer development. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5010377.

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Garrison, A. A. On-line chemical composition analyzer development. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/6568144.

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Birnbaum, E., S. Agnew, G. Jarvinen, and S. Yarbro. Chemical composition of Hanford Tank SY-102. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10107044.

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Fox, K., T. Edwards, and W. Riley. Chemical Composition Measurements of LAWA44 Glass Samples. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1332671.

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Williams, A. L., J. E. Rothert, K. E. McClure, et al. Determining the chemical composition of cloud condensation nuclei. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7068030.

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