Effect of flame remelting on microstructure and wear behaviour of plasma sprayed NiCrBSi-30%Mo coating

被引：29
|
作者：
Yang, X. -C. [1 ,2 ]
Li, G. -L. [1 ]
Wang, H. -D. [2 ]
Dong, T. -S. [1 ]
Kang, J. -J. [3 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China
[2] Acad Armored Forces Engn, Natl Key Lab Remfg, Beijing 100072, Peoples R China
[3] China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China
来源：
SURFACE ENGINEERING | 2018年 / 34卷 / 03期
关键词：
Plasma spraying; Flame remelting; Microstructure; Wear properties; NiCrBSi-Mo; NI-BASED COATINGS; MECHANICAL-PROPERTIES; PERFORMANCE; HARDNESS; GUN;
D O I：
10.1080/02670844.2016.1226053
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of flame remelting on the microstructural features, mechanical properties and dry sliding wear properties of supersonic plasma sprayed NiCrBSi-30 wt-% Mo coating were evaluated. The modified microstructure of the flame remelted coating, such as reduction in micro-defects, decrease in line roughness, laminar architecture elimination and material homogenisation was obtained. The Vickers micro-hardness and elastic modulus measurement showed an enhancement for flame remelted coating. The main wear mechanism of the as-sprayed coating was adhesive/delaminative wear. While the main wear mechanism of the flame remelted coating was adhesive wear. The wear resistance of flame remelted coating surpassed that of the as-sprayed coating and was by far superior to the substrate.
引用
收藏
页码：181 / 188
页数：8
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