Laser surface texturing and tribological behaviour under solid lubrication on titanium and titanium alloy surfaces

被引：15

作者：

Cao, Wenhui ^{[1
,2
]}

Hu, Tianchang ^{[1
]}

Fan, Hengzhong ^{[1
]}

Hu, Litian ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China

来源：

INTERNATIONAL JOURNAL OF SURFACE SCIENCE AND ENGINEERING | 2021年 / 15卷 / 01期

基金：

中国国家自然科学基金; 中国科学院西部之光基金;

关键词：

titanium; titanium alloy; laser parameters; surface texture; friction; solid lubrication; wear; TI6AL4V ALLOY; FRETTING WEAR; FRICTION; MICROSTRUCTURE; PERFORMANCE;

D O I：

10.1504/IJSURFSE.2021.114347

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Surface textures with dimple and groove were fabricated on titanium and its alloy surfaces by a Nd:YAG pulsed laser. The effect of laser parameters on the two types of texture morphologies was investigated. The unidirectional sliding tests were carried out for the Ti6Al4V surface under solid lubrication conditions and the effect of dimple density from 5% to 30% was examined. The results show that laser parameters have a significant effect on the size and depth of texture for titanium and its alloy surfaces. Comparing with the untextured surface, the longevity of solid lubricant film on the textured surface is prolonged by 90% at least. The beneficial effect of dimples is to act as solid lubricant reservoirs under solid lubrication.

引用

页码：50 / 66

页数：17

共 34 条

[1]

Blunt LA, 2009, TRIBOL INT, V42, P1859

[2] Efficiency of laser surface texturing in the reduction of friction under mixed lubrication [J].