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| 铁素体-珠光体钢中的疲劳裂纹扩展行为 | |
| 引用本文： | 马杭,刘天佐,赵文军. 铁素体-珠光体钢中的疲劳裂纹扩展行为[J]. 兰州理工大学学报, 1997, 0(4) |
| 作者姓名： | 马杭 刘天佐 赵文军 |
| 作者单位： | 甘肃工业大学材料工程系 |
| 摘 要： | 在扫描电镜下对两种铁素体－珠光体钢中的低周疲劳裂纹扩展进行了动态原位观察，发现疲劳裂纹只在铁素体中扩展，而珠光体晶团阻碍其扩展．提出疲劳裂纹扩展的形态及方式与材料的疲劳裂纹扩展阻力之间存在着一定的关系． |
| 关 键 词： | 铁素体－珠光体钢 低周疲劳裂纹 原位观察 疲劳损伤 剪切滑移带 |
Propagation behaviors of fatigue crack in ferrite pearlite steels |
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| Ma Hang,Liu Tianzuo,Zhao Wenjun. Propagation behaviors of fatigue crack in ferrite pearlite steels[J]. Journal of Lanzhou University of Technology, 1997, 0(4) | |
| Authors: | Ma Hang Liu Tianzuo Zhao Wenjun |
| Abstract: | In situ observation under SEM is carried out for the dynamic propagation of low cyclic fatigue cracks in ferrite pearlite steels. It has been found that the fatigue cracks propagate only within ferrites while being hindered by the pearlites. A proposal is put forward that a certain correlation exists between the growth morphology and pattern and the resistance of the material to the fatigue crack propagation. |
| Keywords: | ferrite pearlite steel low cyclic fatigue crack in situ observation fatigue damage shear sliding band |
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