Preparation and Tribological Properties of Face Centered Cubic TiB Coatings on the Ti6Al4V Alloy

被引：0
|
作者：
Tu, Yepeng [1 ]
Zhang, Jin [1 ]
Zheng, Xiaojun [1 ]
Ran, Xuelin [1 ]
Wang, Wei [2 ,3 ]
Li, Songxia [1 ]
机构：
[1] Southwest Petr Univ, Sch New Energy & Mat, Chengdu 610500, Peoples R China
[2] State Key Lab Long Life High Temp Mat, Deyang 618000, Peoples R China
[3] Dongfang Turbine Co LTD, Deyang 618000, Peoples R China
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2023年 / 76卷 / 08期
关键词：
Pack boriding; FCC-TiB coating; Microstructure; Wear resistance; BORIDE-COATED TITANIUM; SILICON-NITRIDE; WEAR; MICROSTRUCTURE; LAYERS; KINETICS; SURFACE; DIFFUSION; FRICTION; GROWTH;
D O I：
10.1007/s12666-023-02918-0
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
To improve wear resistance of Ti6Al4V alloys, a face- centered cubic (FCC) TiB coating was fabricated on the surface using pack boriding. The coatings were mainly composed of an outer TiB layer and inner slight TiB whisker. The average surface microhardness values of the coatings prepared at 900-1100 degrees C were 796-1719 HV0.05, which are significantly higher than that of the substrate. The cross-sectional microhardness exhibited a gradient change, which was conducive to the improvement of tribological properties from the coating to the substrate. The wear mechanism of TiB coatings obtained at different temperatures is discussed. The wear rate of the boride coatings prepared at 1100 degrees C against a Si3N4 ball was 1/3rd that of the Ti6Al4V alloy substrate. The coatings exhibited good wear resistance owing to the good anti-wear resistances of the hard TiB phase.
引用
收藏
页码：2141 / 2148
页数：8
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