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| 拉应力对管线钢磁导率及磁记忆信号的影响 | |
| 引用本文： | 郭联欢,李著信,苏毅,张镇,刘书俊,何定全.拉应力对管线钢磁导率及磁记忆信号的影响[J].后勤工程学院学报,2011,27(6):26-30. |
| 作者姓名： | 郭联欢 李著信 苏毅 张镇 刘书俊 何定全 |
| 作者单位： | 1. 后勤工程学院军事供油工程系,重庆,401311 2. 后勤工程学院机械电气工程系,重庆,401311 3. 69064部队,新疆,841000 |
| 基金项目： | 总后勤部军需物资油料部资助项目(油20040207) |
| 摘 要： | 运用数值模拟方法,对不同拉应力作用下X60管线钢的相对磁导率μσ的变化情况进行了仿真.结果表明,加载初期试件处于弹性变形阶段时,μσ值变化较大,随应力的增大μσ值迅速减小；加载超过屈服点后,μσ值变化很小,应力的增大已不再对其产生显著影响.磁记忆检测试验表明,进入塑性变形阶段后,信号曲线亦会由起初无规律性分布发展到相近... |
| 关 键 词： | 磁记忆 拉应力 相对磁导率 |
Influence of Tensile Stress on the Magnetic Permeability and Magnetic Memory Signals of Pipeline Steel |
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| GUO Lian-huan,LI Zhu-xin,SU Yi,ZHANG Zhen,LIU Shu-jun,HE Ding-quan.Influence of Tensile Stress on the Magnetic Permeability and Magnetic Memory Signals of Pipeline Steel[J].Journal of Logistical Engineering University,2011,27(6):26-30. | |
| Authors: | GUO Lian-huan LI Zhu-xin SU Yi ZHANG Zhen LIU Shu-jun HE Ding-quan |
| Institution: | GUO Lian-huan1,LI Zhu-xin1,SU Yi2,ZHANG Zhen1,LIU Shu-jun1,HE Ding-quan3(1.Dept.of Petroleum Supply Engineering,LEU,Chongqing 401311,China,2.Dept.of Machinery & ElectricalEngineering,3.Unit 69064,Xinjiang 841000,China) |
| Abstract: | The method of numerical simulation is used to stimulate the change rule of x60 pipeline steel＇ s relative magnetic permeability. Results show that the value of μσ varies largely in elastic deformation stage, decreases rapidly along with the increase of stress, and has little change when the load exceeds the yield point, since the increase of load is no longer of a significant impact on μσ. Magnetic memory, experiment proves that the curve of magnetic memory signals will develop from non-regular distribution to the similar shape in plastic deformation stage. |
| Keywords: | magnetic memory tensile stress relatively magnetic permeability |
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