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| 金属磁记忆技术表征应力集中、残余应力及缺陷的探讨 | |
| 引用本文： | 董丽虹,徐滨士,董世运,宋丽,陈群志,石常亮.金属磁记忆技术表征应力集中、残余应力及缺陷的探讨[J].材料工程,2009(8). |
| 作者姓名： | 董丽虹 徐滨士 董世运 宋丽 陈群志 石常亮 |
| 作者单位： | 1. 装备再制造技术国防科技重点实验室,北京,100072 2. 装甲兵工程学院,装备技术研究所,北京,100072 3. 北京航空工程技术研究中心,北京,100076 |
| 基金项目： | 国家973计划资助项目，国家自然科学基金重点资助项目 |
| 摘 要： | 对应力集中、残余应力及缺陷三者之间的关系进行讨论,举例分析磁记忆信号对不同应力集中程度、疲劳裂纹及残余应力的反映.结果表明:金属磁记忆技术适宜表征铁磁材料存在磁导率急剧变化的位置;磁记忆信号能否表征残余应力还需要进一步的深入研究. |
| 关 键 词： | 金属磁记忆 应力集中 残余应力 缺陷 异变磁信号 |
Discussion on Characterizing Stress Concentration,Residual Stress and Defect by Metal Magnetic Memory Testing |
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| DONG Li-hong,XU Bin-shi,DONG Shi-yun,SONG Li,CHEN Qun-zhi,SHI Chang-liang.Discussion on Characterizing Stress Concentration,Residual Stress and Defect by Metal Magnetic Memory Testing[J].Journal of Materials Engineering,2009(8). | |
| Authors: | DONG Li-hong XU Bin-shi DONG Shi-yun SONG Li CHEN Qun-zhi SHI Chang-liang |
| Affiliation: | DONG Li-hong1,XU Bin-shi1,DONG Shi-yun1,SONG Li2,CHEN Qun-zhi3,SHI Chang-liang1(1 National Key Laboratory for Remanufacturing,Beijing 100072,China,2 Equipment Technology Institute of Academy of Armored Forces Engineering,3 Beijing Aeronautical Technology Research Center,Beijing 100076,China) |
| Abstract: | The relationship between stress concentration,residual stress and defect was discussed.Some cases were presented to analyze the response of metal magnetic memory signals to the different degree of stress concentration,fatigue crack and residual stress.The results show that metal magnetic memory testing is suitable to detect the positions with rapid change of magnetic permeability.Further investigation is needed to determine whether metal magnetic memory signals can characterize residual stress. |
| Keywords: | metal magnetic memory stress concentration residual stress defect abnormal magnetic signal |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
