为研究应力诱发切口部位产生的二维自发弱磁场信号特征,制作45CrNiMoVA特种钢板状切口试件,在MTS810型液压饲服实验机上施加轴向拉应力,采用EMS2003磁记忆仪和RM-1磁记忆仪采集不同应力水平下切口部位法向分量Hp(y)信号、水平分量Hp(x)信号,分析弹性变形阶段内二维弱磁信号特征及变化规律.结果表明:拉应力诱发切口部位Hp(x)信号呈现正向磁尖峰特征,Hp(y)信号呈现磁异变波峰波谷特征；Hp(x)信号的尖峰值和水平基线幅值、Hp(y)信号的峰峰值和峰间斜率K值与工作应力存在线性相关性.
参考文献
| [1] | 《机械设计手册》编委会.疲劳强度设计/机械设计手册[M].北京:机械工业出版社,2007 |
| [2] | 童团刚,张华全,谢崇全,杨学锋.机械零件静强度可靠性设计[J].机械研究与应用,2009(03):89-90,94. |
| [3] | 尹何迟,颜焕元,陈立功,倪纯珍.磁巴克豪森效应在残余应力无损检测中的研究现状及发展方向[J].无损检测,2008(01):34-36,41. |
| [4] | DOUBOV A A .Screening of weld quality using the magnetic metal memory effect[J].Welding in the World,1998,41:196-198. |
| [5] | A.A.Dubov .A Technique for Monitoring the Bends of Boiler and Steam-Line Tubes Using the Magnetic Memory of Metal[J].Thermal engineering,2001(4):289-295. |
| [6] | A. A. Doubov .Express method of quality control of a spot resistance welding with usage of metal magnetic memory[J].Welding in the World: Journal of the International Institute of Welding: Journal of the International Institute of Welding,2002(Suppl.):317-320. |
| [7] | Dong Lihong;Xu Binshi;Dong Shiyun .Variation of stress-induced magnetic signals during tensile testing of ferromagnetic steels[J].NDT & E International: Independent Nondestructive Testing and Evaluation,2008(3):184-189. |
| [8] | Lihong Dong;Lihong Dong;Binshi Xu;Binshi Xu;Shiyun Dong;Shiyun Dong .Stress dependence of the spontaneous stray field signals of ferromagnetic steel[J].NDT & E International,2009(4):323-327. |
| [9] | 于凤云,张川绪,吴淼.检测方向和提离值对磁记忆检测信号的影响[J].机械设计与制造,2006(05):118-120. |
| [10] | 李路明,王晓凤,黄松岭.磁记忆现象和地磁场的关系[J].无损检测,2003(08):387-389,406. |
| [11] | 池永滨,刘宇哲,胡先龙,马得举.汽轮机叶片金属磁记忆诊断技术[J].无损检测,2002(10):440-442. |
| [12] | 万升云,熊腊森.磁记忆技术在铸钢件检测中的应用研究[J].铸造技术,2006(12):1289-1292. |
| [13] | C. C. H. Lo;S. J. Lee;L. Li;L. C. Kerdus;D. C. Jiles .Modeling Stress Effects on Magnetic Hysteresis and Barkhausen Emission Using a Hysteretic-Stochastic Model[J].IEEE Transactions on Magnetics,2002(5):2418-2420. |
| [14] | Chen Y.;Jiles DC. .The magnetomechanical effect under torsional stress in a cobalt ferrite composite[J].IEEE Transactions on Magnetics,2000(5 Pt.1):3244-3247. |
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