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.
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页码：7964 / 7970
页数：6
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