Friction and wear behaviors of B4C/6061Al composite

被引：48

作者：

Dou, Yuhai ^{[1
,2
]}

Liu, Yong ^{[1
]}

Liu, Yanbin ^{[1
]}

Xiong, Zhiping ^{[2
]}

Xia, Qingbing ^{[1
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[2] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia

来源：

MATERIALS & DESIGN | 2014年 / 60卷

关键词：

Abrasive wear; Adhesive wear; Delamination wear; Fretting wear; Heat treatment; DRY SLIDING WEAR; MECHANICAL-PROPERTIES; B4C; MICROSTRUCTURE; ALLOY;

D O I：

10.1016/j.matdes.2014.04.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The friction and wear behaviors of B4C/6061Al composite were studied by considering the effect of sliding time, applied load, sliding velocity and heat treatment. The results show that, when the sliding time, applied load and sliding velocity reach critical values (namely 120 min, 30 N and 240 r min(-1), respectively), the mass loss and friction coefficient (COF) increase significantly. Severe delamination wear is the main wear mechanism after sliding for 120 min and under an applied load of 30 N. While fretting wear happens at a sliding velocity of 240 r min(-1). After solution-treated at 550 degrees C for 1 h and then aged at 180 degrees C for 15 h, the composite shows the highest wear resistance owing to the precipitation of beta '' (Mg2Si) phases in the matrix and the strong interface bonding between B4C particles and the matrix alloy. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：669 / 677

页数：9

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