摘要
研究了不同wv／wc对Cr-Mo-V精铸热锻模具钢的高温磨损性能的影响，并探讨了其磨损机理。结果表明，当wv／wc为1．5（0．3／0．2）-2．5（0．5／0．2）时，精铸热锻模具钢磨损率高，耐磨性差；wv／wc为3（1．2／0．4）时，磨损率最低。精铸热锻模具钢高温磨损机理为氧化物疲劳剥落，磨面上产生的氧化物为Fe3O4和Fe2O3，对磨损起到保护作用。
The effects of wv/wc on high-temperature wear property of Cr-Mo-V cast hot-forging die steel were studied. The mechanism of high-temperature wear was discussed. The results show that the cast steels with a wv/wc of 1.5 （0. 3/ 0. 2 ） - 2. 5 （0. 5/0. 2 ） have the low wear resistance with higher wear rate ; when wv/wc is 3 （ 1.2/0. 4）, wear rate reaches the lowest. The oxides produced on worn surface are Fe3O4 and Fe2O3 , which have a protection function from wear. The high temperature wear mechanism of the steel is oxide fatigue exfoliation.
出处
《金属热处理》
EI
CAS
CSCD
北大核心
2006年第4期15-18,共4页
Heat Treatment of Metals
基金
国家计委产业化前期关键技术与成套设备研制开发项目(1999317)
关键词
热锻模具
铸钢
高温磨损
wv/wc
hot-forging die
cast steel
high temperature wear
wv／wc
