中国焊接(英文版)
中國銲接(英文版)
중국한접(영문판)
CHINA WELDING
2002年
2期
161-166
,共6页
刘政军%郝雪枫%傅迎庆%牟力军
劉政軍%郝雪楓%傅迎慶%牟力軍
류정군%학설풍%부영경%모력군
hardness%wear resistance%gray cast iron%tungsten argon arc
To improve wear resistance of surface will increase the service life of gray cast iron directly. This paper presents that gray cast iron surface coated with alloy powder is locally remelted by TIG arc to increase the wear resistance. The influences of arc current and scanning rate etc on surface properties are found. Under different conditions, the microstructure, hardness and wear resistance of remelted layer are analyzed and measured. The results indicate that the gray cast iron surface can be strengthened by TIG arc local remelting treatment. Especially, surface alloying hardening effect is best and surface properties are improved remarkably.
