Slurry erosion performance of Ni-Al2O3 based composite coatings

被引：60
|
作者：
Grewal, H. S. [1 ]
Agrawal, Anupam [1 ]
Singh, H. [1 ]
机构：
[1] Indian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, India
来源：
TRIBOLOGY INTERNATIONAL | 2013年 / 66卷
关键词：
Erosion; Wear; Thermally-sprayed; Mechanism; WEAR-RESISTANCE; SPRAY COATINGS; SAND EROSION; ALUMINA;
D O I：
10.1016/j.triboint.2013.06.010
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Performance of Ni-Al2O3 based composite coatings was evaluated under slurry erosion condition. Erosion resistance was correlated with different properties of the coatings. It was observed that fracture toughness is an important parameter that controls the erosion resistance of coatings. Content of alumina was found to have significant influence on the erosion performance and material removal mechanism of the coatings. Erosion rates were predicted using fracture-contact model. The results were observed to lie in close proximity to the experimental results. Cracking and spalling of coating, fracture of reinforcing phase and removal of splats were observed to be the primary erosion mechanisms. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：296 / 306
页数：11
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