| 激光辐照对LY12CZ铝合金疲劳断裂性能的影响 |
| |
| 引用本文： | 虢志德,何秋菊,李光霞,李长春.激光辐照对LY12CZ铝合金疲劳断裂性能的影响[J].航空学报,1993,14(3):193-196. |
| |
| 作者姓名： | 虢志德 何秋菊 李光霞 李长春 |
| |
| 作者单位： | 陕西省耀县2号信箱，陕西省耀县2号信箱，华中理工大学力学系，华中理工大学力学系 耀县 727100，耀县 727100，武汉 430074，武汉 430074 |
| |
| 摘 要： | 介绍利用激光辐照处理LY12CZ铝合金的研究情况。辐照参数优选、疲劳寿命对比试验、裂纹扩展试验、位错胞运动分析都表明:辐照参数对疲劳寿命影响显著。疲劳寿命仅在特定的辐照参数范围内才能显著地增加,抗疲劳断裂能力也会较大地提高。
|
| 关 键 词： | 激光 位错胞 疲劳寿命 裂纹扩展 |
THE INFLUENCE OF LASER RADIATION ON THE FATIGUE-FRACTURE PROPERTY OF LY12CZ Al-ALLOY |
| |
| Guo Zhi-de,He Qiu-ju.THE INFLUENCE OF LASER RADIATION ON THE FATIGUE-FRACTURE PROPERTY OF LY12CZ Al-ALLOY[J].Acta Aeronautica et Astronautica Sinica,1993,14(3):193-196. |
| |
| Authors: | Guo Zhi-de He Qiu-ju |
| |
| Institution: | 1. Box 2, Yao County, Shaan Xi, 727100;2. Department of Mechanics, Huazhong University of Science and Technology, Wuhan, 430074 |
| |
| Abstract: | The state of the art of laser radiation on LY12CZ Ai-alloy is briefly introduced. The optimization of radiative parameter, the comparison test of fatigue life, the test of crack propagation, the analysis of dislocation cell move, and all the results show that the effect of radiative parameters on fatigue life is significant. The fatigue life can be obviously increased only in a specific range of radiative parameters, and in such a case the ability of anti fatigue-fracture can be considerably increased. |
| |
| Keywords: | laser dislocation cell fatigue life crack propagation |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《航空学报》浏览原始摘要信息 |
| 点击此处可从《航空学报》下载免费的PDF全文 |
|
