Cr-Mo-V精铸热锻模具钢组织和高温耐磨性的研究

李小艳; 王树奇; 崔向红; 王峰

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Cr-Mo-V精铸热锻模具钢组织和高温耐磨性的研究
Microstructure and High Temperature Wear Resistance of Cr-Mo-V Cast Hot-forging Tool Steel
2007年第6期页码：459-461
纸质出版日期： 2007 ，
DOI：

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[1]李小艳,王树奇,崔向红,王峰.Cr-Mo-V精铸热锻模具钢组织和高温耐磨性的研究[J].特种铸造及有色合金,2007(06):459-461+408.

Li Xiaoyan1, Wang Shuqi1, Cui Xianghong2, et al. Microstructure and High Temperature Wear Resistance of Cr-Mo-V Cast Hot-forging Tool Steel[J]. Special Casting & Nonferrous Alloys, 2007,(6):459-461.
[1]李小艳,王树奇,崔向红,王峰.Cr-Mo-V精铸热锻模具钢组织和高温耐磨性的研究[J].特种铸造及有色合金,2007(06):459-461+408. DOI：

Li Xiaoyan1, Wang Shuqi1, Cui Xianghong2, et al. Microstructure and High Temperature Wear Resistance of Cr-Mo-V Cast Hot-forging Tool Steel[J]. Special Casting & Nonferrous Alloys, 2007,(6):459-461. DOI：

摘要

采用销盘式高温磨损试验机研究了Cr-Mo-V精铸热锻模具钢的高温耐磨性

并与H13钢进行了对比。采用TEM和SEM分别观察模具钢的显微组织和磨面形貌

分析了精铸热锻模具钢的成分、组织与耐磨性之间的关系。研究结果表明

Cr-Mo-V精铸热锻模具钢的显微组织为回火屈氏体

440℃回火碳化物为（Fe

Cr）3C

600℃回火碳化物主要为VC

还有少量Mo2C和（Cr

Fe）7C3。Cr-Mo-V精铸热锻模具钢的耐磨性明显高于国产H13钢

与进口H13钢相近

其合金化学成分设计合理

生产成本低、性价比高。

Abstract

High temperature wear resistance of Cr-Mo-V cast hot-forging tool steel was examined on a pin-on-disk high temperature wear tester

which is compared with H13 tool steel.The microstructure and morphology of the cast steel were observed by TEM and SEM.Meanwhile

the effects of constituent and microstructure on the wear resistance of the cast steel were described.It is found that the microstructure of Cr-Mo-V cast hot-forging tool steel is composed of tempered troosite.Predominant carbide is（Fe

Cr）3C with tempered at 440 ℃ while it is VC and minor（Cr

Fe）7C3 and Mo2C with tempered at 600 ℃.The high temperature wear resistance of the Cr-Mo-V cast hot-forging tool steel is evidently superior to that of H13 tool steel produced at home

and is equivalent to that of ones produced at aboard

exhibiting low melting cost and high ratio of property to price as well as rational alloying composition design.