| 焊接热影响区及焊缝中疲劳裂纹的扩展 |
| |
| 引用本文： | 马杭,赵文军,刘天佐. 焊接热影响区及焊缝中疲劳裂纹的扩展[J]. 兰州理工大学学报, 1998, 0(1) |
| |
| 作者姓名： | 马杭 赵文军 刘天佐 |
| |
| 作者单位： | 甘肃工业大学材料工程系 |
| |
| 摘 要： | 在扫描电镜下，对焊接热影响区及一种焊缝金属的低周疲劳裂纹扩展进行了动态原位观察，进一步说明低周疲劳裂纹扩展的形态及方式，以及与材料的疲劳裂纹扩展阻力之间存在着一定的关系，其形态与方式是材料微观组织与特定循环载荷之间相互作用的某种反映．
|
| 关 键 词： | 低周疲劳裂纹 焊接热影响区 焊缝金属 微裂纹 分叉 |
In situ observation of fatigue crack propagation in HAZ and weld metal |
| |
| Ma Hang,Zhao Wenjun,Liu Tianzuo. In situ observation of fatigue crack propagation in HAZ and weld metal[J]. Journal of Lanzhou University of Technology, 1998, 0(1) |
| |
| Authors: | Ma Hang Zhao Wenjun Liu Tianzuo |
| |
| Abstract: | In situ observation under SEM is carried out upon the dynamic propagation of low cyclic fatigue cracks in a heat affected zone and a weld metal, which further shows that a certain correlation exists between the growth morphology and pattern and the resistance of the material to the fatigue crack propagation. The morphology and pattern reflect to some extent the interaction between the microstructure of the material and specified cyclic loading. |
| |
| Keywords: | low cyclic fatigue crack HAZ of welding weld metal micro crack bifurcation |
| 本文献已被 CNKI 等数据库收录！ |
