TA2合金激光熔覆自润滑复合涂层组织与摩擦学性能

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期刊论文

论文标题(英文)：

Microstructure and Tribological Properties of Laser Cladding Self-Lubricating Anti-Wear Composite Coatings on TA2 Alloy

作者：

刘秀波;乔世杰;翟永杰;周仲炎;罗迎社

通讯作者：

Liu, Xiubo(liuxiubosz@163.com)

作者机构：

[周仲炎; 罗迎社] Institute of Rheological Mechanics & Materials Engineering, Central South University of Forestry & Technology, Changsha, Hunan 410004, China

[乔世杰; Zhai Y.] School of Mechanical and Electric Engineering, Soochow University, Suzhou, Jiangsu 215006, China

[刘秀波] Institute of Rheological Mechanics & Materials Engineering, Central South University of Forestry & Technology, Changsha, Hunan 410004, China<&wdkj&>School of Mechanical and Electric Engineering, Soochow University, Suzhou, Jiangsu 215006, China

通讯机构：

Institute of Rheological Mechanics & Materials Engineering, Central South University of Forestry & Technology, Changsha, Hunan, China

语种：

中文

关键词：

激光熔覆;TA2合金;耐磨减摩;复合涂层

关键词(英文)：

Friction;Laser cladding;Lubrication;Microhardness;Microstructure;Mixtures;Powder coatings;Titanium;Titanium alloys;Titanium carbide;Tribology;Wear of materials;Wear resistance;Anti-wear;Coefficient of frictions;Mild plastic deformation;Powder mixtures;Self lubrication;Self-lubricating;Tribological properties;Wear mechanisms;Composite coatings

期刊：

摩擦学学报

ISSN：

1004-0595

年：

2017

卷：

期：

页码：

75-82

DOI：

10.16078/j.tribology.2017.01.010

基金类别：

The project was supported by the Joint Funds of the National Natural Science Foundation of China (U1533101) and State Key Laboratory of Advanced Technology for Materials Synthesis Processing, Wuhan University of Technology (2017-KF-5) and Suzhou Municipal Scientific Program of China (SYG201635).

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

摘要：

以三种不同质量分数配比为40%Ti-19.5%TiC-40.5%WS_2、40%Ti-25.2%TiC-34.8%WS_2、40%Ti-29.4% TiC-30.6%WS_2的复合粉末为预置原料,采用激光熔覆技术在钛合金TA2表面原位合成自润滑耐磨复合涂层.系统地分析了涂层的物相、组织、显微硬度及其摩擦学性能与机理.结果表明:三种涂层的显微硬度分别为HV_(0.5)927.1、HV_(0.5)1007.5和HV_(0.5)1052.3,相对于基体(HV_(0.5)180)有极大的提高;三种涂层的摩擦系数和磨损率分别为0.41和30.98×10~(-5) mm~3/(N·m); 0.30和18.92×10~(-5) mm~3/(N·m)以及0.34和15.98×10~(-5) mm~3/(N·m). WS2质量分数为34.8%和30.6%的预置粉末制备的涂层表现出较好的耐磨...

摘要(英文)：

Three different self-lubrication anti-wear composite coatings were fabricated on TA2 titanium alloy by laser cladding with different powder mixtures: 40%Ti-19.5%TiC-40.5%WS2, 40%Ti-25.2%TiC-34.8%WS2, 40%Ti-29.4%TiC-30.6%WS2 (w). The microstructure, phase compositions, microhardness and tribological properties of coatings were investigated systematically. The results have demonstrate that the microhardness of the three different coatings were HV0.5 927.1, HV0.5 1007.5 and HV0.5 1052.3, respectively. The microhardness of coatings were improved dr...

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