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()
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图 6. DM钢在620℃热稳保温20 h后的 TEM照片
Fig.6. TEM morphologies of DM steel after tempering at 620℃ for 16 h (a) bright-field image, (b) and (c) dark-field image of the carbides and corresponding SAD pattern
