Corrosion and Wear Performance of Stellite Alloy Hardfacing Prepared via Laser Cladding

被引：13
|
作者：
Ding, Y. P. [1 ]
Liu, R. [1 ,2 ]
Wang, L. [1 ]
Li, J. H. [1 ]
Yao, J. H. [1 ]
机构：
[1] Zhejiang Univ Technol, Inst Laser Adv Mfg, Hangzhou 310023, Peoples R China
[2] Dept Mech & Aerosp Engn, Ottawa, ON K1S 5B6, Canada
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2020年 / 56卷 / 02期
关键词：
Stellite; 6; laser cladding; wear; corrosion; polarization; oxide film; BEHAVIOR; RESISTANCE; COATINGS;
D O I：
10.1134/S2070205120020069
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Stellite 6 alloy hardfacing has been popularly applied on the seat face of control valves where both wear and corrosion in various corrosive media are involved. In this research, Stellite 6 alloy hardfacing is prepared via laser cladding and the wear performance and corrosion behavior in morpholine, 3.5 wt % NaCl, and Green Death solution, of this hardfacing are investigated using a pin-on-disc tribometer and a three-electrode cell, respectively. The worn and corroded surfaces are analyzed using SEM/EDS. For comparison, cast Stellite 6 is also studied in parallel. The experimental results show that cast Stellite 6 has better wear resistance than laser clad Stellite 6 but better corrosion resistance in the corrosive media due to better retention of the oxide film on the specimen surface.
引用
收藏
页码：392 / 404
页数：13
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