Effect of heat treatment on the structure, cavitation erosion and erosion-corrosion behavior of Fe-based amorphous coatings

被引:79
|
作者
Zheng, Z. B. [1 ]
Zheng, Y. G. [1 ]
Sun, W. H. [2 ]
Wang, J. Q. [2 ]
机构
[1] Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
基金
中国国家自然科学基金;
关键词
Coating; Slurry erosion; Cavitation; Thermally-sprayed; STAINLESS-STEEL COATINGS; SOLID PARTICLE EROSION; BULK METALLIC-GLASS; NACL SOLUTION; COMPOSITE COATINGS; SURFACE-HARDNESS; SPRAYED COATINGS; STELLITE; RESISTANCE; SLURRY;
D O I
10.1016/j.triboint.2015.04.039
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this study, high-velocity oxygen-fuel sprayed amorphous coatings have been heat treated at various temperatures to form microstructures with crystalline phases. The structure, micro-hardness, cavitation erosion resistance and erosion-corrosion resistance of these coatings are compared. Crystalline phases are discovered in the coatings after heat treatments at 650 degrees C and 750 degrees C. The coating heat treated at 750 degrees C exhibits the poorest cavitation erosion resistance in 3.5 wt% NaCl solution among all coatings due to the degraded corrosion resistance. However, the hardness of the crystallized coating can reach 1000 Hv and the erosion-corrosion resistance of the heat treated coating is better than the untreated one. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:393 / 403
页数:11
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