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7. DM钢热疲劳循环不同周次后的表面裂纹形貌
Fig.7. Macroscopic morphologies of thermal fatigue cracks on the surface of DM steel after different thermal cycles (a) 400 cycles, (b) 600 cycles, (c) 1000 cycles, (d) 2000 cycles and (e) 3000 cycles
