Effects of Loading on High Speed Wear Properties of In-situ Steel Matrix Composites

Hu Changxu; Song Yanpei; Guo Qingfu; Duan Qingchen; Wei Yonghui

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Effects of Loading on High Speed Wear Properties of In-situ Steel Matrix Composites
Issue 6, Pages: 466-468(2008)
Published： 2008 ，
DOI：

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[1]胡昌旭,宋延沛,郭庆福,段青辰,魏永辉.载荷对钢基自生复合材料高速磨损性能的影响[J].特种铸造及有色合金,2008(06):466-468+408-409.

Hu Changxu, Song Yanpei, Guo Qingfu, et al. Effects of Loading on High Speed Wear Properties of In-situ Steel Matrix Composites. [J]. Special Casting & Nonferrous Alloys (6):466-468(2008)
[1]胡昌旭,宋延沛,郭庆福,段青辰,魏永辉.载荷对钢基自生复合材料高速磨损性能的影响[J].特种铸造及有色合金,2008(06):466-468+408-409. DOI：

Hu Changxu, Song Yanpei, Guo Qingfu, et al. Effects of Loading on High Speed Wear Properties of In-situ Steel Matrix Composites. [J]. Special Casting & Nonferrous Alloys (6):466-468(2008) DOI：

摘要

采用铸造的方法制备了钢基自生复合材料

并通过MMS-1G高速销盘摩擦磨损试验机、扫描电镜和能谱仪

研究了钢基自生复合材料的微观组织和载荷对该复合材料高速磨损性能的影响。结果表明

制备的复合材料中自生碳化物颗粒细小、圆整、分布均匀

自生碳化物体积分数可达到31%左右。在40m/s的滑动速度下

钢基自生复合材料的磨损率随载荷的提高而增大

当载荷从50N增加至150N时

该复合材料的磨损率也由0.99×10-6g/m增加到4.2×10-6g/m

复合材料的摩擦因数则随载荷增加而降低。对自生复合材料的磨损机理进行了探讨。

Abstract

In-situ steel matrix composites were fabricated by a casting method.The microstructure and effects of loading on high speed wear behavior of in-situ steel matrix composites were investigated by MMS-1G high speed disc wearing tester

SEM and EDS.The results indicate that the in-situ steel matrix composites with uniformly distributed fine and round in-situ carbide particles that can reach up to about 31% in volumetric fraction can be prepared successfully.The wearing rate of the composites is increased from 0.99×10-6 g/m to 4.2×10-6 g/m with the increase of loading from 50 N to 150 N at 40 m/s

however

the frictional coefficient of the composites is decreased with increasing in loading.Finally

the wear mechanism of the in-situ steel matrix composites was approached.