| 振动时效机理研究及其工艺参数选择 |
| |
| 引用本文： | 关六三,程 卫.振动时效机理研究及其工艺参数选择[J].装备制造技术,2014(2):20-22,41. |
| |
| 作者姓名： | 关六三 程 卫 |
| |
| 作者单位： | [1]黄河水利职业职业技术学院,河南开封475004 [2]广西大学,广西南宁530004 |
| |
| 摘 要： | 从宏观和微观两个角度分析振动过程中残余应力的变化,阐述了振动消除残余应力的机理。从宏观上讲,当残余应力与外加动应力叠加大于材料屈服极限时发生塑性变形,残余应力会得到释放;从微观上讲,在外力作用下位错塞积开通的运动可以降低、均化残余应力峰值。同时,提出了检测残余应力和振动参数选择的方法。
|
| 关 键 词： | 振动时效 残余应力 位错 振动时效参数 |
Research on Vibration Stress-relief Mechanism and Choice of Vibration Parameters |
| |
| Authors: | GUAN Liu-san CHENG Wei |
| |
| Affiliation: | 1. Yellow River Conservancy Technical Institute, Kaifeng Henan 475004, China; 2. Guangxi University, Nanning Guangxi 530004, China) |
| |
| Abstract: | Through analysis the change of residual stress in the process of vibration from both macroscopic view and microcosmic view, exposition the mechanism of vibratory stress relief. From the macroscopic view, when the sum ofresidual stress and dynamic stress is greater than the metal＇s yield microcosmic view, under the action of dynamic stress, dislocation homogenize the peak value of residual stress. In the end, proposed choice of vibration parameter. limit,residual stress can pileup will be dredged be remaseo, from me which can lower and the method of residual stress detection and the |
| |
| Keywords: | vibratory stress relief residual stress dislocation vibratory stress relief parameter |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
