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材料工程  2010 

不同应力集中系数下磁记忆信号影响因素研究

, PP. 35-38

Keywords: 磁记忆检测,磁记忆信号,应力集中,拉拉疲劳,异变峰

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Abstract:

以45CrNiMoVA钢为实验材料,加工不同应力集中系数的试件进行拉拉疲劳实验,采用磁记忆检测仪检测不同载荷及疲劳周次时试件不同位置的磁记忆信号.结果表明载荷及疲劳周次的增加,均会使磁曲线顺时针转动,且载荷的影响明显强于疲劳周次;不同位置磁记忆信号特征不同.出现疲劳裂纹后,在一定范围内异变峰峰值显著增大.

References

[1]  DUBOV A A.A study of metal properties using the method of magnetic memory[J].Metal Science and Heat Treatment,1997,39(9-10):401-402.
[2]  邸新杰,李午申.油气管道焊接裂纹金属磁记忆定量化分析系统[J].电焊机,2008,38(9):94-96.
[3]  SHI Chang-liang,DONG Shi-yun,XU Bin-shi,et al.Stress concentration degree affects spontaneous magnetic signals of ferromagnetic steel under dynamic tension load[J].NDT&E International,2010,43:8-12.
[4]  宛德福,罗世化.磁性物理[M].北京:电子工业出版社,1987.
[5]  王翔,陈铭,徐滨士.48MnV钢拉压疲劳过程中的磁记忆信号变化[J].中国机械工程,2007,18(15):1862-1864.
[6]  DONG Li-hong,XU Bin-shi,DONG shi-yun,et al.Study on the magnetic memory signals of medium carbon steel specimens with surface crack precut during loading process[J].Rare metals,2006,25(spec):431-435.
[7]  陈传尧.疲劳与断裂[M].武汉:华中科技大学出版社,2002.
[8]  DUBOV A A.Express method of quality control of a spot resistance welding with usage of metal magnetic memory[J].Welding in the World,2002,46(spec):317-320.
[9]  DUBOV A A.Diagnostics of metal items and equipment by means of metal magnetic memory[A].Proceedings of the NDT'99 and UK Corrosion'99 Conference[C].UK:Poole,1999.287-293.
[10]  于润桥,徐长英,龙盛蓉.金属磁记忆检测在钻具评价中的应用[J].仪器仪表学报,2008,29(1):191-193.
[11]  毕凤琴,王文江,戴光,等.压力管道焊缝的磁记忆检测[J].大庆石油学院学报,2007,31(1):58-60.
[12]  DONG Li-hong,XU Bin-shi,DONG Shi-yun,et al.Variation of stress-induced magnetic signals during tensile testing of ferromagnetic steels[J].NDT&E International,2008,41:184-189.
[13]  ATHERTON D L,SZQUNAR J A.Effect of stress on magnetization and magnetostriction in pipeline steel[J].IEEE Transactions on Magnetics,1986,22(5):514-516.

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