Molybdenum alloying in cast iron and steel

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Molybdenum alloying in cast iron and steel

Xiang-Ru Chen , Qi-Jie Zhai , Han Dong , Bao-Hua Dai , Hardy Mohrbacher

Advances in Manufacturing ›› 2020, Vol. 8 ›› Issue (1) : 3 -14.

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Advances in Manufacturing ›› 2020, Vol. 8 ›› Issue (1) : 3 -14. DOI: 10.1007/s40436-019-00282-1

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Molybdenum alloying in cast iron and steel

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¹ School of Materials Science and Engineering, Shanghai University, 200444, Shanghai, P.R. China

² CITIC Machinery Manufacturing Inc., 043011, Houma, Shanxi, P.R. China

³ Department of Materials Engineering, KU Leuven, 3001, Leuven, Belgium

⁴ NiobelCon bvba, 2970, Schilde, Belgium

^a cxr16@shu.edu.cn

^e hm@niobelcon.net

Xiang-Ru Chen is mainly engaged in research of high-performance cast steel materials using special alloying by niobium, vanadium, and rare earth elements. She has been involved in the development of wear-resistant steel, heat-resistant steel, low temperature steel, cast iron, aluminum alloys. She has supervised one project of the National Natural Science Foundation of China as well as several industrial projects. She published more than 40 papers in domestic and foreign journals. She won one provincial and local science and technology award and applied for 8 patents. She is member of the automotive materials branch of the Chinese Society of Automotive Engineering, the cryogenic steel branch of the Chinese Society of Metals, the wear-resistant materials branch of China, and the editorial board of Modern Cast Iron magazine.

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Qi-Jie Zhai is the director of the Advanced Solidification Technology Center of Shanghai University, vice chairman of the China Foundry Society, director of the China Institute of Foundry Journal Workmen’s Committee, and member of the World Foundry Organization (WFO) Ferrous Metals Technical Committee. He is editorial board member of 13 academic journals. 4 original technologies, including thermal simulation of metal solidification, homogenization of pulse magnetically induced oscillation, nucleation of double disturbances of temperature and composition, and engineering materials of solidification metastable phase and super performance, are proposed. 9 new foundry products, such as centrifugal casting double metal compound roll ring, are developed. 11 technical achievements have been put into application. He has supervised over 80 projects, filed 89 patent applications, published 466 academic papers, published 2 monographs. He was honored with 7 provincial science and technology awards and 1 national technical invention award.

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Han Dong is Professor and Dean of the School of Materials Science and Engineering of Shanghai University. He also is Research fellow of the Central Iron & Steel Research Institute. He has been working in research of steel science and technology for over 30 years. He studied and proposed Deformation Induced Transformation (DIT) phenomenon and Multiphase, Metastable and Multiscale (M3) principal to control the microstructure evolution of steel and improve the performances. Novel steels, such as micron steel, medium manganese auto sheet steel, high toughness/ductility HSLA steel plate, delayed fracture resistant steel, and fatigue failure resistant steel have been developed under his guidance. He was granted 58 patents, published 458 journal papers and two books and edited two special issues in journals.

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Bao-Hua Dai is the Chief Engineer of CITIC Machinery Manufacturing Inc. where he has worked since 1982. He has long years of experience in practical production and casting process. During his career, he has held senior roles in many development and innovation projects, especially in recent years, like cast steel brake disc for high speed train, casting device of track shoe (obtain of 6 practical patents), performance test of casting material of node for marine use and structure design, preparation method of nodular cast iron and riser structure design of fixed casting mandrel under atmospheric pressure. He is a technical expert of Shanxi Foundry Society.

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Hardy Mohrbacher specializes in materials and mechanical engineering including steel alloy design and processing, sheet metal forming and welding, automotive body design, non-destructive testing and materials characterization, plus the tribology of hard materials. He has written and co-authored over 200 scientific publication in the respective areas. He has held senior positions within, among others, Fraunhofer Institute for Nondestructive Testing (IZFP), Sidmar (ArcelorMittal Ghent) and ThyssenKrupp (TKTB). He is an Associate Professor at KU Leuven in Belgium and an Adjunct Professor at China’s Shanghai University. Since 2007 he is owner and managing director of NiobelCon bvba, a consulting company focusing on steel alloy design, metallurgical processing and steel applications.

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Abstract

Metal casting is an important manufacturing technology for efficiently producing massive components with complex shape. A large share of industrial castings is made from iron and steel alloys, combining attractive properties and low production cost. Upgrading of properties in cast iron and steel is mainly achieved by alloying and in fewer cases by heat treatment. Molybdenum is an important alloying element in that respect, increasing strength, hardness and toughness. It also facilitates particular heat treatments such as austempering. The paper describes the metallurgical functionality of molybdenum alloying in iron-based castings and demonstrates its effectiveness for applications in the automotive and mining industry.

Keywords

Grey cast iron / Nodular iron / Pearlite / Austempering / Creep resistance / Wear resistant alloys / Hardness / Toughness / Mining industry / Automotive industry

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Xiang-Ru Chen, Qi-Jie Zhai, Han Dong, Bao-Hua Dai, Hardy Mohrbacher. Molybdenum alloying in cast iron and steel. Advances in Manufacturing, 2020, 8(1): 3-14 DOI:10.1007/s40436-019-00282-1

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