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| 改进的金属磁记忆检测方法的探讨 | |
| 引用本文： | 张静,周克印,姚恩涛,吴文亮,董务疆. 改进的金属磁记忆检测方法的探讨[J]. 理化检验(物理分册), 2004, 40(4): 183-186 |
| 作者姓名： | 张静 周克印 姚恩涛 吴文亮 董务疆 |
| 作者单位： | 1. 南京航空航天大学无损检测中心,南京,210016;南京农业大学工学院,南京,210031 2. 南京航空航天大学无损检测中心,南京,210016 3. 新疆航空公司,乌鲁木齐,830016 |
| 摘 要： | 针对金属磁记忆检测技术存在着信号易受环境干扰，早期判断困难等不足的情况，研究了通过外加激励磁场改善铁磁性金属产生的磁记忆信号等方法。结果发现，在外加激励磁场下，铁磁性金属产生的磁记忆信号呈现明显的规律性，并且提高了对损伤预见的准确性。 |
| 关 键 词： | 磁记忆 无损检测 铁磁性构件 应力集中 磁致伸缩系数 磁化方向 磁场强度 |
| 文章编号： | 1001-4012(2004)04-0183-04 |
A PRELIMINARY STUDY ON IMPROVED TESTING METHOD BASED ON METAL MAGNETIC MEMORY EFFECT |
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| ZHANG Jing. A PRELIMINARY STUDY ON IMPROVED TESTING METHOD BASED ON METAL MAGNETIC MEMORY EFFECT[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2004, 40(4): 183-186 | |
| Authors: | ZHANG Jing |
| Affiliation: | ZHANG Jing~ |
| Abstract: | Metal magnetic memory testing technique is a non-destructive testing technique with wide application prospect. But the technique has some disadvantages: the signal is easily interfered by the environment and it is difficult to predict the early destruction in the tests. This article focuses on the methods of improvement of the magnetic memory signal by placing the ferromagnetic structure in drive magnetic field. It has been found that in drive magnetic field this signal presents apparent regularity and predicts destruction more precisely. |
| Keywords: | Magnetic memory Nondestructive testing Ferromagnetic structure Stress concentration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |