| 应力对漏磁信号的影响 |
| |
| 引用本文： | 郭欣,张卫民. 应力对漏磁信号的影响[J]. 无损检测, 2007, 29(8): 479-481,485 |
| |
| 作者姓名： | 郭欣 张卫民 |
| |
| 作者单位： | 北京理工大学,机械与车辆工程学院,北京,100081 |
| |
| 摘 要： | 根据最新力磁理论，使用微型霍尔探头对R3碳钢进行漏磁检测。分析了在弱磁场和强磁场下施加应力后材料的漏磁信号变化。指出残余应力作用下中碳钢的漏磁信号会发生剧烈变化以及应力和漏磁信号之间的联系。预言了对应力集中进行漏磁检测的可行性。
|
| 关 键 词： | 漏磁检测 残余应力 磁化率 霍尔元件 |
| 文章编号： | 1000-6656（2007）08-0479-03 |
| 收稿时间： | 2006-02-17 |
| 修稿时间： | 2006-02-17 |
The Effect of Stress for Magnetic Flux Leakage Signal |
| |
| GUO Xin,ZHANG Wei-min. The Effect of Stress for Magnetic Flux Leakage Signal[J]. Nondestructive Testing, 2007, 29(8): 479-481,485 |
| |
| Authors: | GUO Xin ZHANG Wei-min |
| |
| Affiliation: | School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | According to the lately force magnetic theory,tiny Holl probe was used to practice magnetic flux leakage(MFL) testing on R3 middle-carbon steel.Experiments were proceeded under low and high MFL signal's change after stress being applied.The significant effect of residual stress on MFL signals was pointd out,the relationship between residual stress and MFL signal was pointed out also.Experiments showed that it is possible to test the stress concentration with the above mentioned method. |
| |
| Keywords: | Magnetic flux leakage testing Residential stress Magnetic permeability Holl element |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
