不同频率交变磁场下低合金钢焊缝微区磁致塑性变形与磁致伸缩的关系
Relationship between Magneto-plasticity and Magnetostriction in Welding Seam of Low Alloy Steel in Alternating Magnetic Field at Different Frequencies
摘 要
通过改变交变磁场的频率(磁感应强度一定),研究了QSTE420钢焊缝的磁致微区塑性变形和磁致伸缩幅值随频率的变化趋势,并探讨了磁致微区塑性变形和磁致伸缩两者之间的关系.结果表明:随交变磁场频率的降低,QSTE420钢焊缝区域的磁致塑性变形更加明显,而磁致伸缩幅值则逐渐减小;磁致伸缩所引起的应力、应变不是磁致微区塑性变形的主要原因.
频率
微区塑性变形
磁致伸缩
alternating magnetic field
frequency
magneto-plasticity
magnetostriction
Abstract
With the alteration of frequency of the alternating magnetic field,the tendencies of magneto-plasticity and magnetostriction in the welding seam of QSTE420 steel were studied.Based on the experimental results,the relationship between magneto-plasticity and magnetostriction was interpreted.The results show that as the frequency of magnetic field decrease,the magneto-plasticity in welding seam of QSTE420 steel became more remarkable,but the strain magnitude caused by magnetostriction gradually dropped.It could be concluded that magnetostriction can not be the main cause of micro plasticity.
中图分类号 TG142.12
所属栏目 材料性能及其应用
基金项目 教育部高校青年教师奖([2002]383);武汉市科技计划资助项目(20067003111-05)
收稿日期 2008/7/11
修改稿日期 2009/2/18
网络出版日期
作者单位点击查看
备注宋燕利(1979-),男,山东曲阜人,助教,硕士研究生.
引用该论文: SONG Yan-li,HUA Lin,WANG Ben. Relationship between Magneto-plasticity and Magnetostriction in Welding Seam of Low Alloy Steel in Alternating Magnetic Field at Different Frequencies[J]. Materials for mechancial engineering, 2009, 33(8): 73～76
宋燕利,华林,王犇. 不同频率交变磁场下低合金钢焊缝微区磁致塑性变形与磁致伸缩的关系[J]. 机械工程材料, 2009, 33(8): 73～76
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参考文献
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【2】KLAMECKI B E.Residual stress reduction by pulsed magne-tic treatment[J].Journal of Materials Processing Technology,2003,141(3):385-394.
【3】唐非,鹿安理,方慧珍,等.磁场处理对钢中内应力影响的研究[J].机械工程材料,1998,22(4):4-5.
【4】PAULMIER D.Steel surface modifications in magnetised sliding contact[J].Surface and Coating Technology,1995,76:583-588.
【5】HOCHMA R F N,TSELESIN N,DRIS V.Magnetic fields:fertile ground for metals processing[J].Advanced Materials & Processes,1998,8:36-41.
【6】BOSE M S C.Effect of saturated magnetic field on fatigue life of carbon steel[J].Physica Status Solidi A,1984,86:649-654.
【7】LU B T,QIAO S R,SUN X Y.Exploration on repairing fatigue damage of steel specimens with magnetic treatment[J].Scripta Materialia,1999,40(7):767-771.
【8】陈洪强,王明道.提高铁磁性金属耐磨性的磁改性方法:中国,200310123441.2[P].2004-12-15.
【9】林健,赵海燕,蔡志鹏,等.磁处理改善低碳钢焊接接头的耐腐蚀性能[J].焊接学报,2006,27(1):63-69.
【10】CAI Z P,LIN J,ZHOU L A,et al.Evaluation of effect of magnetostriction on residual stress relief by pulsed magnetic treatment[J].Materials Science and Technology,2004,20(12):1563-1566.
【11】CAI Z P,ZHAO H Y,LIN J,et al.Plastic deformation caused by pulsed magnetic treatment of mid-carbon steel[J].Materials Science Engineering A,2007,458:262-267.
【12】WU S,LU A L,ZHAO H Y,et al.Micro mechanism of residual stress reduction by low frequency alternating magnetic field treatment[J].Materials Science and Engineering A,2002,328:133-136.
【13】TANG F,LU A L,MEI J F,et al.Research on residual stress reduction by a low frequency alternating magnetic field[J].Journal of Materials Processing Technology,1998,74:255-258.
【14】钟文定.铁磁学(中册)[M].北京:科学出版社,1987.
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