Dry sliding wear property of a laser melting/deposited Ti2Ni/TiNi intermetallic alloy

被引：57

作者：

Gao, F. ^{[1
]}

Wang, H. M. ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Lab Laser Mat Proc & Mfg, Beijing 100083, Peoples R China

来源：

INTERMETALLICS | 2008年 / 16卷 / 02期

基金：

中国国家自然科学基金;

关键词：

intermetallics; miscellaneous; tribological properties; laser processing;

D O I：

10.1016/j.intermet.2007.09.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A wear resistant intermetallic alloy consisting of TiNi primary dendrite and Ti2Ni matrix was fabricated by the laser melting deposition manufacturing process. Wear resistance of the Ti2Ni/TiNi alloy was evaluated on a block-on-wheel dry sliding wear tester at room temperature under the loads of 98 N, 147 N and 196 N. Results indicate that the Ti2Ni/TiNi inter-metallic alloy exhibited high wear resistance due to its good combination of strength and toughness. Cover-layers were formed on the worn surface of the Ti2Ni/TiNi intermetallic alloy during the dry sliding wear. Transferred layers played an active role in reducing wear mass loss by preventing the surface of Ti2Ni/TiNi alloy from direct contact with the mating wheel. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：202 / 208

页数：7

共 19 条

[1] Cavitation erosion mechanism of NiTi coatings made by laser plasma hybrid spraying [J].