连续冲击载荷下镍钛形状记忆合金动态力学性能的实验研究

功能材料, 2012, 43(13): 1678-1681.

连续冲击载荷下镍钛形状记忆合金动态力学性能的实验研究

邹广平 ^1, , 李雨蕾 ^2, , 王丹丹 ^3, , 唱忠良 ^4,

1.哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001

2.哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001

3.中海石油技术检测有限公司,天津300452

4.哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001

基金项目: 教育部高等学校博士学科点科研基金资助项目(20092304110003)

关键词：镍钛形状记忆合金 , 相变初始应力 , 连续冲击 , 冲击功

The experimental study of dynamic mechanical property of Ni-Ti shape memory alloy

Keywords： Ni-Ti shape memory alloy , initial stress of phase transformation , continuous impact , impact energy

采用SHPB实验装置对处于奥氏体状态下的镍钛形状记忆合金进行了连续动态冲击实验，而且每次冲击时要保持冲击功相同，实验结果表明随着冲击次数的增加，镍钛形状记忆合金的应变率在降低，马氏体相变初始应力在增加，具有逐次强化效应，卸栽后合金的变形回复率也随着冲击次数的增加而增加。

Continuous dynamic impact experiment was carried out to the Ni-Ti shape memory alloy of austenite state by SHPB experimental facilities, and the impact energy was kept the same every impact, the results show that with the increasing of the impact time, not only the initial stress for martensitic transformation increases because of successive strengthen effect, but also the deformation recovery rate after unloading increases at the same time, but the stress-rate decreases with the impact time.

参考文献

[1]	Lin P H;Tobushi H;Tanaka K et al.Influence of strain rate on deformation properties of NiTi shape memory alloy[J].JSME International Journal,1996,A39:117-123.
[2]	Entemeyer D.;Eberhardt A.;Berveiller M.;Patoor E. .Strain rate sensitivity in superelasticity[J].International Journal of Plasticity,2000(10/11):1269-1288.
[3]	Tobushi H;Shimeno Y;Hachisuka T .Influence of strain rate on superelastie properties of TiNi shape memory alloy[J].Mech Maters,1998,30:141-150.
[4]	Tobushi H;Takata K;Shimeno Y et al.Influence of strain rate on superelastic behavior of TiNi shape memory alloy[J].Proceedings of the Institution of Mechanical Engineers,1999,213:93-102.
[5]	KURT JACOBUS;HUSEYIN SEHITOGLU;MARK BALZER .Effect of Stress State on the Stress-Induced Martensitic Transformation in Polycrystalline Ni-Ti Alloy[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1996(10):3066-3073.
[6]	周宏霞 .高应变率下Ni-Ti形状记忆合金力学行为研究[D].西北工业大学,2005.
[7]	Sia Nemat-Nasser;Jeom-Yong Choi;Wei-Guo Guo;Jon B. Isaacs .Very high strain-rate response of a NiTi shape-memory alloy[J].Mechanics of materials,2005(2/3):287-298.
[8]	章建军,朱金华.多次冲击载荷下TiNiNb合金的反常磨损行为[J].中国有色金属学报,2006(01):79-83.
[9]	Sia Nemat-Nasser;Wei-Guo Guo .Superelastic and cyclic response of NiTi SMA at various strain rates and temperatures[J].Mechanics of materials,2006(5/6):463-474.

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