Unveiling the effect of electron beam shock on the microstructure and wear resistance of Cr12MoV steel

被引：5

作者：

Wang, Rong ^{[1
]}

Song, Zhenfei ^{[1
]}

Wei, Deqiang ^{[1
]}

Li, Xinkai ^{[1
]}

Song, Jinjie ^{[1
]}

Mo, Zhenzhao ^{[1
]}

Weng, Yitao ^{[1
]}

Yang, Fengtao ^{[1
]}

机构：

[1] Guilin Univ Elect Technol, Sch Mech & Elect Engn, Guangxis Key Lab Mfg Syst & Adv Mfg Technol, Guilin 541004, Peoples R China

来源：

VACUUM | 2024年 / 226卷

基金：

中国国家自然科学基金;

关键词：

Electron beam shock; Cr12MoV steel; Microstructure; Wear resistance;

D O I：

10.1016/j.vacuum.2024.113347

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Enhancing wear resistance is the core factor that prolonged the life of the Cr12MoV mold and elevates the quality of the components produced. Hence, Cr12MoV mold steel was shocked by scanning electron beam (SEB) to improve wear resistance. Results revealed that the segregation eutectic carbides in the surface structure of Cr12MoV steel were dissolved during the shock process of various beam electron beams, and the small particles of carbides produced are helpful in reducing wear. With an energy density of 20 J/mm 2 , surface roughness of Cr12MoV steel decreases from 2.9 mu m to 1.2 mu m, the friction coefficient decreases from 0.85 to 0.52. Additionally, the wear capacity also decreases from 0.036 mm 3 to 0.011 mm 3 , and surface wear resistance increases by over 3 times. Grain refinement -induced surface hardening is the primary cause underlying performance improvement. This study provides ideas for improving the surface quality of Cr12MoV steel.

引用

页数：6

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