The optimization of martensitic stainless steel composition to reduce hot tearing after laser powder bed fusion

Lingzhi Wu; Cong Zhang; Bin Xu; Liu Zhang; Haiqing Yin; Ruijie Zhang; Xue Jiang; Yongwei Wang; Jie Su; Geng Liu; Dil Faraz Khan; Xuanhui Qu

Materials & Design (Nov 2022)

The optimization of martensitic stainless steel composition to reduce hot tearing after laser powder bed fusion

Lingzhi Wu,
Cong Zhang,
Bin Xu,
Liu Zhang,
Haiqing Yin,
Ruijie Zhang,
Xue Jiang,
Yongwei Wang,
Jie Su,
Geng Liu,
Dil Faraz Khan,
Xuanhui Qu

Affiliations

Lingzhi Wu: Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
Cong Zhang: Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
Bin Xu: Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
Liu Zhang: Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
Haiqing Yin: Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Corresponding author.
Ruijie Zhang: Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
Xue Jiang: Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
Yongwei Wang: Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
Jie Su: Institute for Special Steel Research, Central Iron and Steel Research Institute, Beijing 100081, China
Geng Liu: Institute for Special Steel Research, Central Iron and Steel Research Institute, Beijing 100081, China
Dil Faraz Khan: Department of Physics, University of Science and Technology Bannu, Bannu 28100, Pakistan
Xuanhui Qu: Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China

Journal volume & issue: Vol. 223
p. 111221

Abstract

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Ultra-high strength martensitic stainless steel plays an essential role in aerospace, nuclear and other fields. This paper addresses laser-based powder bed fusion of martensitic stainless steel, based on thermodynamic software and computer languages for high-throughput calculation in combination with the hot tear sensitivity index criterion, Optimization of the alloy composed of Fe11Cr8Ni5Co3Mo martensitic stainless steel for resistance to hot tearing. The martensitic stainless steel composition with the lowest crack sensitivity was selected from hundreds of millions of data sets, reducing the hot tearing sensitivity index from 6841 to 1861. The alloy with the lowest hot tearing sensitivity was Fe11.3Cr8.18Ni2.0Mo2.8Co0.24Mn0.02V0.02Si0.01C0.17Mg. The hot tearing sensitivity has been experimentally verified in conjunction with additive manufacturing, and a comparative study of the building state organization and mechanical properties has been made.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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