| 中低碳钢静拉伸时磁记忆效应的实验研究 |
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| 引用本文： | 张卫民,刘红光,孙海涛. 中低碳钢静拉伸时磁记忆效应的实验研究[J]. 北京理工大学学报, 2004, 24(7): 571-574 |
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| 作者姓名： | 张卫民 刘红光 孙海涛 |
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| 作者单位： | 北京理工大学,机械与车辆工程学院,北京,100081;北京理工大学,机械与车辆工程学院,北京,100081;北京理工大学,机械与车辆工程学院,北京,100081 |
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| 基金项目： | 国家自然科学基金 , 北京市自然科学基金 |
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| 摘 要： | 研究静拉伸情况下低碳X70管线钢和中碳45#钢的金属磁记忆效应.对X70钢试件进行了拉伸前后的金属磁记忆检测,总结了拉伸至塑性变形后试件表面磁场强度零值线的分布变化规律.在对45#钢所做的静拉伸实验中,发现磁记忆检测方法对于压磁效应具有一定的敏感性,为在弹性区域内检测应力的变化提供了可能性.
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| 关 键 词： | 金属磁记忆 静拉伸 无损检测 压磁效应 |
| 文章编号： | 1001-0645(2004)07-0571-04 |
| 收稿时间： | 2003-08-26 |
| 修稿时间： | 2003-08-26 |
Magnetic Memory Effect of Low and Medium Carbon Steel Under Static Tension Conditions |
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| ZHANG Wei-min,LIU Hong-guang and SUN Hai-tao. Magnetic Memory Effect of Low and Medium Carbon Steel Under Static Tension Conditions[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2004, 24(7): 571-574 |
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| Authors: | ZHANG Wei-min LIU Hong-guang SUN Hai-tao |
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| Affiliation: | School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | The magnetic memory effects of low carbon steel X70 and medium carbon steel 45 under conditions of static tension. Were presented samples of steel X70 were tested by metal magnetic memory method before and after tension, and rules of distribution of the zero line of the intensity of magnetic field on sample's surface after attaining the plastic deformation zone were derived. Upon experimenting on steel 45 under static tension condition, the magnetic memory method is found to be sensitive to piezomagnetism effect. This provides a probability to test stress changes in the elastic zone. |
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| Keywords: | metal magnetic memory static tension non-destructive testing piezomagnetism effect |
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