Microstructure and wear performance of arc-sprayed Al/316L stainless-steel composite coating

被引：27

作者：

Li, Qiaolei ^{[1
]}

Song, Peng ^{[1
]}

Ji, Qiang ^{[2
]}

Huang, Yong ^{[2
]}

Li, Demin ^{[1
]}

Zhai, Ruixiong ^{[1
]}

Zheng, Biju ^{[1
]}

Lu, Jiansheng ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China

[2] Chengdu Zheng Heng Auto Parts Co Ltd, Chengdu 61000, Sichuan, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2019年 / 374卷

基金：

中国国家自然科学基金;

关键词：

Composite coating; Interpenetrating structure; Wear resistance; Iron oxides; Arc spraying; ALUMINUM-ALLOY; MILD WEAR; BEHAVIOR; TRANSITION; RESISTANCE; OXIDATION; SURFACE; AL; TEMPERATURE; FRICTION;

D O I：

10.1016/j.surfcoat.2019.06.006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To improve the wear resistance of aluminium alloys, an Al/316L stainless-steel composite coating was successfully prepared on an aluminium alloy surface by two-channel-synchronization wire feeding arc spraying technology. The composite coating has a ductile (Al) and hard (stainless-steel) interpenetration structure. The interface between the substrate and the coating was fuzzy owing to the pinning interface of interpenetrating structure and the obvious diffusion layer near the interface, compared with 316L stainless-steel coating. The tribological properties of composite coatings were analysed. The wear resistance of the Al/316L stainless-steel composite coating was shown to be three times higher than that of the stainless-steel coating. The Al/316L stainless-steel composite coatings improved the wear resistance of aluminium alloy by a factor greater than nine. In the composite coating, the addition of Al splats promoted the formation of Fe3O4 and the interpenetrating structures, improving the wear resistance and crack propagation resistance of the coating.

引用

页码：189 / 200

页数：12

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