热作模具钢DM的高温稳定性和热疲劳性能

施渊吉,于林惠,于照鹏,成功,吴晓春,滕宏春

High Temperature Stability and Thermal Fatigue Behavior of DM Hot Working Die Steel

Yuanji SHI,Linhui YU,Zhaopeng YU,Gong CHENG,Xiaochun WU,Hongchun TENG

表3 DM钢热疲劳循环不同周次的损伤因子

Table 3 Thermal fatigue damage factors of DM steel after different thermal cycles:

Cycles Surface damage factor Section damage factor Total damage factor 600 0.021 0.10 0.009 2000 0.053 0.28 0.019 3000 0.077 0.29 0.023