Effects of Heat Treatment on Microstructure and Mechanical Properties of Spray Formed High Vanadium High-Speed Steel
Effects of heat treatment on micro structure and mechanical properties of spray formed (SF) high vanadium high-speed steel (HHS) were studied.Experimental results show that microstructure of the deposited state was homo geneous, had no segregation, and the carbides dispersed.After hot isostatic pressing(HIP), the see ondary carbides precipitated along the grain bound ary gradually, and the size of the primary carbides increases.Through heat treatment, the microstruc ture was composed of tempered-martensite and small amount residual austenite, and the globular carbides with MC style (it was VC mainly)distribu ted in the matrix uniformly.Hardness (HRC) in creased with increasing quenching temperature.When the quenching temperature is 1160 ℃, the quenching hardness reached 63.5HRC.Impact re sistance of HIP state was better than that of deposi ted state, and reached 2.63J, especially.
heat treatment high-speed steel microstructure mechanical properties spray forming
Kuan Wei Jieqiong Hu Aikun Li Yunfeng Yang Ming Xie Song Wang Jiming Zhang Yongtai Chen Youcai Yang Manmen Liu Saibei Wang Song Chen
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunmi State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunmi
国际会议
The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)
昆明
英文
372-375
2013-11-19（万方平台首次上网日期，不代表论文的发表时间）