A Novel Fe-Based Amorphous Powder and Coating with Excellent Wear and Corrosion Resistance

被引：2
作者：
Wang, Haibo [2 ]
Li, Chunyan [1 ,2 ,3 ]
Wang, Shunping [2 ]
Li, Jinling [2 ]
Pu, Wenbin [2 ]
Kou, Shengzhong [1 ,2 ,3 ]
机构：
[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
[2] Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
[3] Lanzhou Univ Technol, Wenzhou Engn Inst Pump & Valve, Wenzhou 325105, Zhejiang, Peoples R China
来源：
JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2023年 / 32卷 / 04期
基金：
中国国家自然科学基金;
关键词：
amorphous coating; corrosion resistance; Fe-based amorphous powder; wear resistance; STAINLESS-STEEL; BEHAVIOR; MICROSTRUCTURE; ALLOYS; HVAF; NACL;
D O I：
10.1007/s11666-022-01513-x
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel amorphous powder with the composition Fe43.6Ni17.4Cr9Co6Si1.5B17.5Nb5 was prepared by the high-pressure Ar gas atomization method. The amorphous coating was fabricated on an A32 hull steel substrate by high-velocity oxygen fuel (HVOF), and the wear and corrosion behavior was investigated. The results show that the amorphous coating exhibits a dense and uniform structure, with 0.9% porosity. Compared with the A32 hull steel, the coefficient of friction (COF) and the wear rate of the amorphous coating are steady and low (0.4 and 4.5 +/- 2.1 x 10(-5) mm(3) N-1 m(-1)) under a 10 N load. The coating wear mechanism is oxidation wear, accompanied by peeling wear. The amorphous coating displays a wide passive region and a low I-corr (artificial seawater solution for 6.378 +/- 0.021 x 10(-7) A cm(-2)), indicating that the amorphous coating has excellent corrosion resistance. This work shows that the novel Fe-based amorphous coating possesses excellent corrosion and wear resistance and is a good prospect for industrial and commercial applications.
引用
收藏
页码：1066 / 1077
页数：12
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