The effect of high-velocity oxy-fuel spraying parameters on microstructure, corrosion and wear resistance of Fe-based metallic glass coatings

被引：67
作者：
Zhang, Han [1 ,2 ]
Hu, Yong [1 ,2 ]
Hou, Guoliang [3 ]
An, Yulong [3 ]
Liu, Guang [4 ]
机构：
[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
[2] Lanzhou Univ Technol, Dept Mat Sci & Engineer, Lanzhou 730050, Peoples R China
[3] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[4] China Acad Ordnance Sci, Ningbo Branch, Ningbo 315103, Zhejiang, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2014年 / 406卷
基金：
中国科学院西部之光基金;
关键词：
Spraying parameters; Fe-based amorphous coating; Microstructure; Corrosion resistance; Wear resistance; TRIBOLOGICAL BEHAVIOR; ALLOYS; HVOF;
D O I：
10.1016/j.jnoncrysol.2014.09.041
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Fe-based amorphous coatings were deposited on 1Cr18Ni9Ti stainless steel substrates by high velocity oxy-fuel spraying (HVOF) at different spraying parameters. It has been found that the amorphous phase content of the assprayed coatings rises initially and declines later with the increase of spraying power, which is due to the competition between melting and oxidation degree of the feedstock powder and the thermal radiation effect of the flame. Besides, the microhardness and wear resistance of the as-sprayed coatings increase with increasing spraying power, which is attributed to the enhancement of splat-to-splat binding force at elevated spraying power. Moreover, the three kinds of Fe-based amorphous coatings obtained under different spraying parameters all exhibit better corrosion resistance than 316L stainless steel. Particularly, the Fe-based amorphous coating deposited at an intermediate spraying power exhibits dense structure as well as the highest amorphous phase content, the best corrosion resistance, and very good wear resistance, showing promising potential as a candidate for surface protective and anticorrosion coatings for the stainless steel. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：37 / 44
页数：8
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