Effect of critical plasma spraying parameter on microstructure and wear behavior of mullite coatings

被引：20

作者：

Hou, Guoliang ^{[1
]}

An, Yulong ^{[1
]}

Zhao, Xiaoqin ^{[1
]}

Zhou, Huidi ^{[1
]}

Chen, Jianmin ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 94卷

基金：

中国科学院西部之光基金;

关键词：

CPSP; Mullite coating; Microstructure; Wear; SPLAT FORMATION; HEAT-TREATMENT; TEMPERATURE; RESISTANCE; DISPERSION; SUBSTRATE; STRESS; OXIDATION; CORROSION; NITROGEN;

D O I：

10.1016/j.triboint.2015.08.031

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Mullite coatings were fabricated by atmosphere plasma spraying (APS) at varying primary gas flow rates. The flattening behavior of deposited particles as well as microstructure, mechanical properties of mullite coatings were studied in relation to the critical plasma spraying parameter (CPSP). Moreover, the dry sliding friction and wear behavior of mullite coatings was also evaluated. Results show that at a primary gas flow rate of 40 L/min (referring to a CPSP of 562.5), the spraying powders exhibit high melting degree, spreading degree and deposition efficiency. More importantly, the resultant mullite coating has the best mechanical and tribological properties. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：138 / 145

页数：8

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