Wear-Resistance of Al<sub>2</sub>O<sub>3p</sub>/20Cr25Ni20 Composites at High Temperature

Qiu Jiming; Lu Dehong; Chen Shimin; Wang Jia; Jiang Yehua

doi:10.15980/j.tzzz.2014.08.004

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Wear-Resistance of Al₂O_3p/20Cr25Ni20 Composites at High Temperature
Vol. 34, Issue 8, Pages: 874-877(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.08.004

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[1]邱集明,卢德宏,陈世敏,王佳,蒋业华.Al_2O_(3p)/20Cr25Ni20复合材料的高温磨损性能[J].特种铸造及有色合金,2014,34(08):874-877.

Qiu Jiming, Lu Dehong, Chen Shimin, et al. Wear-Resistance of Al₂O_3p/20Cr25Ni20 Composites at High Temperature. [J]. Special Casting & Nonferrous Alloys 34(8):874-877(2014)
[1]邱集明,卢德宏,陈世敏,王佳,蒋业华.Al_2O_(3p)/20Cr25Ni20复合材料的高温磨损性能[J].特种铸造及有色合金,2014,34(08):874-877. DOI： 10.15980/j.tzzz.2014.08.004.

Qiu Jiming, Lu Dehong, Chen Shimin, et al. Wear-Resistance of Al₂O_3p/20Cr25Ni20 Composites at High Temperature. [J]. Special Casting & Nonferrous Alloys 34(8):874-877(2014) DOI： 10.15980/j.tzzz.2014.08.004.

摘要

研究了挤压铸造法制备的Al2O3陶瓷颗粒增强20Cr25Ni20耐热钢基复合材料在500℃下的高温磨损性能

并和基体材料20Cr25Ni20及其他几种常用的辊环材料进行对比。结果表明

在比压为7.95MPa时

Al2O3p/20Cr25Ni20复合材料高温耐磨性是基体材料20Cr25Ni20的3.4倍

比Cr16高铬铸铁提高了46%

YG10硬质合金耐磨性最好

是复合材料的6.5倍。基体材料高温磨损后发生塑性流动

切削严重

复合材料中氧化铝陶瓷颗粒作为高温耐磨相发挥出良好的耐磨作用。

Abstract

The wear behavior at high temperature of Al2O3 ceramic reinforced 20Cr25Ni20 matrix composites prepared by squeeze casting at 500℃ were investigated

and it was compared with the matrix material 20Cr25Ni20 and other several common roll materials.The results reveal that the Al2O3p/20Cr25Ni20 composites exhibit a better wear resistance

with the specific pressure of 7.95 MPa

which is about 3.4times higher than the matrix materials

and higher than Cr25 high chromium cast iron by 46%.However

the wear resistance of YG10 cemented carbide is 6.5times higher than Al2O3p/20Cr25Ni20 Composites.The matrix materials present serious plastic flow and cutting after high temperature wear

while Al2O3 ceramics plays a good role as the abrasion phase.