热作模具钢DM的高温稳定性和热疲劳性能
施渊吉1,于林惠1,于照鹏2,成功1,吴晓春3,滕宏春1(
)
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High Temperature Stability and Thermal Fatigue Behavior of DM Hot Working Die Steel
SHI Yuanji1,YU Linhui1,YU Zhaopeng2,CHENG Gong1,WU Xiaochun3,TENG Hongchun1()
)
图8. DM钢热疲劳循环不同周次后截面的硬度梯度
Fig.8. Hardness gradient on the cross section of DM steel after different thermal cycles
