Desirable Eutectoid Carbides for Ductility Enhancement of Annealed High-Speed Steel

被引：0

作者：

Xuefeng Zhou

Kaiwen Liu

Hongbing Jiang

Yiyou Tu

Feng Fang

Jianqing Jiang

机构：

[1] Southeast University,School of Materials Science and Engineering

[2] Southeast University,Jiangsu Key Laboratory of Advanced Metallic Materials

[3] Nanjing Forestry University,College of Mechanical and Electronic Engineering

来源：

Journal of Materials Engineering and Performance | 2020年 / 29卷

关键词：

carbide; ductility; eutectoid transformation; heat treatment; steel;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Limited cold formability has been a longstanding challenge for processing high-speed steels. In this study, we probe the relationship between the ductility and eutectoid carbides. The results show that larger-fractioned eutectoid carbides are formed and gradually evolve from granular M6C to rod-shaped M23C6 with increasing annealing duration. Rod-shaped M23C6 carbides have limited shear resistance and are readily sheared by dislocations at large strains, which deteriorates work-hardening abilities and the ductility. Highly dispersive M6C eutectoid carbides are desirable for the ductility enhancement of annealed high-speed steels.

引用

页码：7964 / 7970

页数：6

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