兰姆波表征形状记忆合金相变试验
Experimental Study on the Characterization of Phase Transformation of Shape Memory Alloy by Lamb Waves
摘 要
通过求解薄板的兰姆波频散方程，绘制了NiTi形状记忆合金薄板的频散曲线，并根据频散曲线选择了对合金相变敏感的兰姆波模式。利用PZT超声探头在合金薄板中激励并接收S1及S3模式的兰姆波，测量了温度变化时兰姆波的群速度。研究结果表明，随着NiTi合金相变过程中微观组织结构的变化，兰姆波群速度明显改变，可以根据兰姆波群速度变化测量合金薄板的相变温度。
模式
群速度
形状记忆合金
相变
Lamb wave testing
Mode
Group speed
Shape memory alloy
Phase transformation
Abstract
By solving the lamb wave dispersion equation for NiTi sheet, the dispersion curves were drawn. Lamb modes more sensitive in detecting phase transformation of NiTi alloy were selected on the basis of the dispersion curves. PZT transducers were used to excite and receive S1 and S3 Lamb waves on NiTi sheet. The wave group speed was measured when temperature of NiTi sheet changed. The results showed that some marked changes were observed in the dependence of the group speed versus temperature during phase transformation and phase transformation temperature of NiTi sheet might be examined by the change of the group speed.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 教育部博士点专项基金资助项目(20093218110024)；国际合作项目(BZ2010060)
收稿日期 2011/1/26
修改稿日期
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备注王开圣(1965-)，男，讲师，硕士，主要从事无损检测技术研究及相关数学工作。
引用该论文: WANG KaiSheng,ZHAO ZhiMin. Experimental Study on the Characterization of Phase Transformation of Shape Memory Alloy by Lamb Waves[J]. Nondestructive Testing, 2012, 34(1): 7～9
王开圣,赵志敏. 兰姆波表征形状记忆合金相变试验[J]. 无损检测, 2012, 34(1): 7～9
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参考文献
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【5】Bolognini S, Moreau A. Ultrasonic absorption in ultra-low carbon steel［J］. Journal of Applied Physics,2003,94(6):3771-3780.
【6】Grondel S, Assaad J, Moulin E. Health monitoring of a composite wingbox structure［J］. Ultrasonics,2004,42(1/9):819-824.
【7】Basri R, Chiu W K. Numerical analysis on the interaction of guided Lamb waves with a local elastic stiffness reduction in quasiisotropic composite plate structures［J］. Composite Structures,2004(66):87-99.
【8】刘增华，何存富，吴斌，等.利用兰姆波对板状结构中隐蔽腐蚀缺陷的检测［J］.实验力学,2005,20(2):166-170.
【9】赵连城，蔡伟，郑玉峰.合金的性状记忆效应与超弹性［M］.北京：国防工业出版社,2002.
【2】芦笙，林萍华，陈静，等.声发射在形状记忆合金研究中的应用［J］.中国有色金属学报,2001,11(6):1002.
【3】吴晓东，王征，吴建生.用于智能材料与结构的NiTi丝的电阻特性研究［J］.上海交通大学学报,1998,32(2):80-83.
【4】Marc Dubois, Andre′ Moreau. Ultrasonic velocity measurements during phase transformations in steels using laser ultrasonic［J］. Journal of Applied Physics,2001(11):6487-6495.
【5】Bolognini S, Moreau A. Ultrasonic absorption in ultra-low carbon steel［J］. Journal of Applied Physics,2003,94(6):3771-3780.
【6】Grondel S, Assaad J, Moulin E. Health monitoring of a composite wingbox structure［J］. Ultrasonics,2004,42(1/9):819-824.
【7】Basri R, Chiu W K. Numerical analysis on the interaction of guided Lamb waves with a local elastic stiffness reduction in quasiisotropic composite plate structures［J］. Composite Structures,2004(66):87-99.
【8】刘增华，何存富，吴斌，等.利用兰姆波对板状结构中隐蔽腐蚀缺陷的检测［J］.实验力学,2005,20(2):166-170.
【9】赵连城，蔡伟，郑玉峰.合金的性状记忆效应与超弹性［M］.北京：国防工业出版社,2002.
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