Tempering temperature dependence on the microstructure, mechanical properties and wear behaviour of a novel high chromium cast iron

被引：10

作者：

Wu, Shiyu ^{[1
,2
]}

Wang, Dingchen ^{[1
,2
]}

Tao, Xipeng ^{[2
]}

Wang, Xinguang ^{[2
]}

Zhang, Rui ^{[2
]}

Zhou, Zijian ^{[2
]}

Zhang, Song ^{[1
]}

Wu, Chenliang ^{[1
]}

Sun, Xiaofeng ^{[2
]}

Zhou, Yizhou ^{[2
]}

Cui, Chuanyong ^{[2
]}

机构：

[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China

[2] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2024年 / 197卷

基金：

中国博士后科学基金;

关键词：

Tempering temperature; Microstructure; Mechanical properties; Wear behaviour; High chromium cast iron; STACKING-FAULTS; SLIDING WEAR; RESISTANCE; EVOLUTION; CARBIDES; STEEL;

D O I：

10.1016/j.triboint.2024.109831

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The microstructure, mechanical and wear behaviour of a high chromium cast iron was investigated with various tempering temperatures (200 degrees C, 280 degrees C, 360 degrees C, 440 degrees C) by SEM, TEM and EBSD. Both of primary M 7 C 3 and secondary carbides increasingly coarsed as temperature increasing, contributing to the best mechanical properties as tempered at 200 degrees C. The highest strength and hardness produced highly deformed layers, including the SFs locks in M 7 C 3 and strong work -hardening in matrix, retarding dislocations movement and hindering materials peeling, thus improving the wear resistance as tempered at 200 degrees C. Besides, The wear mechanisms shifted from abrasive and adhesive wear to oxidative and fatigue wear as temperature raising. The optimal heat treatment was ascertained to provide further instructions for the development of advanced cast irons.

引用

页数：13

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