Effect of heat treatment on microstructure and properties of modified hypereutectic high chromium cast iron

被引：14
作者：
Chen, Zhengyang [1 ]
Guo, Qiang [1 ]
Fu, Hanguang [1 ]
Zhi, Xiaohui [2 ]
机构：
[1] Beijing Univ Technol, Beijing, Peoples R China
[2] Shijiazhuang Tiedao Univ, Shijiazhuang, Hebei, Peoples R China
来源：
MATERIALS TESTING | 2022年 / 64卷 / 01期
基金：
中国国家自然科学基金;
关键词：
erosion wear; heat treatment; hypereutectic high chromium cast iron (HCCI); microstructure evolution; wear resistance; WEAR-RESISTANCE; MECHANICAL-PROPERTIES; ABRASION RESISTANCE; SLIDING WEAR; BEHAVIOR; SILICON; SOLIDIFICATION; AUSTENITE; HARDNESS; STEEL;
D O I：
10.1515/mt-2021-2010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of heat treatment on the microstructure, hardness and wear resistance of modified hypereutectic high chromium cast iron (HCCI) was investigated. The results show that the quenching treatment partially dissolves the edges of the primary carbides, and the sharp corners become rounded and blunt. As the quenching temperature increases, the carbide re-dissolves into the matrix, and the hardness and wear resistance first increase and then decrease. The hardness and wear resistance are the best when quenched at 1000 degrees C. After tempering, the martensite is transformed into tempered martensite, and the precipitation of secondary carbides increases. As the tempering temperature increases, the secondary carbides gradually become coarser. When the tempering temperature is 500 degrees C, the hypereutectic HCCI shows the highest hardness and the best wear resistance. When tempered at 400 degrees C, hypereutectic HCCI shows the best erosion and wear resistance.
引用
收藏
页码：33 / 54
页数：22
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