| 3Cr_2W_8V钢的热疲劳及其热疲劳硬化和软化 |
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| 引用本文： | 何则荣,郭志,陈苓.3Cr_2W_8V钢的热疲劳及其热疲劳硬化和软化[J].福州大学学报(自然科学版),1990(1):55-61. |
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| 作者姓名： | 何则荣 郭志 陈苓 |
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| 作者单位： | 福州大学机械系
(何则荣，郭志)，福州大学机械系(陈苓) |
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| 摘 要： | 用扫描电镜及显微硬度计分别对热疲劳试样的热疲劳裂纹的萌生及扩展进行精心观察，及裂纹尖端前沿显微硬度分布进行细致的测量，在试验基础上提出了热疲劳裂纹的萌生、扩展以及裂纹尖端前沿热疲劳硬化、软化的机理．
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| 关 键 词： | 热疲劳 热疲劳硬化 热疲劳软化 模具钢 |
Thermal-Fatigue and Its Hardening and Softening of 3Cr2_W_8V Steel |
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| He Zerong,Guo Zi,Chen Ling.Thermal-Fatigue and Its Hardening and Softening of 3Cr2_W_8V Steel[J].Journal of Fuzhou University(Natural Science Edition),1990(1):55-61. |
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| Authors: | He Zerong Guo Zi Chen Ling |
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| Institution: | Department of Mechanical Engineering |
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| Abstract: | The thermal fatigue crack initiation and propagation have been carefully observed on the surfaces of a series of specimens by using an SEM. and the micro-hardness distribu- tion ahead of crack tip has been measured. On the basis or experimental results, the mecha- nism of thermal fatigue crack initiation and propagation, and of thermal fatigue hardening and softening have been proposed. |
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| Keywords: | thermal-fatigue thermal-fatigued hardening thermal fatigued softening die steel |
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