| 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 |
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| 引用本文： | 宋燕利,华林,王垚. 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, 0(8) |
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| 作者姓名： | 宋燕利 华林 王垚 |
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| 作者单位： | 武汉理工大学材料科学与工程学院; |
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| 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) |
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| 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。
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| 关 键 词： | 交变磁场 频率 微区塑性变形 磁致伸缩 |
Relationship between Magneto-plasticity and Magnetostriction in Welding Seam of Low Alloy Steel in Alternating Magnetic Field at Different Frequencies |
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| 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 Mechanical Engineering, 2009, 0(8) |
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| Authors: | SONG Yan-li HUA Lin WANG Ben |
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| Affiliation: | SONG Yan-li,HUA Lin,WANG Ben(School of Material Science and Engineering,Wuhan University of Technology,Wuhan 430070,China) |
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| 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 coul... |
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| Keywords: | alternating magnetic field frequency magneto-plasticity magnetostriction |
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