| 随机后热处理对TiNi记忆合金精密脉冲电阻对焊接头性能的影响 |
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| 引用本文： | 赵熹华,韩立军,赵蕾.随机后热处理对TiNi记忆合金精密脉冲电阻对焊接头性能的影响[J].焊接学报,2001,22(1):1-4. |
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| 作者姓名： | 赵熹华 韩立军 赵蕾 |
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| 作者单位： | 吉林大学 材料科学与工程学院, |
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| 基金项目： | 国家自然科学基金资助项目! (5 9775 0 6 0 ) |
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| 摘 要： | 采用拉伸测试、SEM、TEM和定点成分能谱分析等手段研究了随机后热处理对TiNi形状记忆合金精密脉冲电阻对焊焊接接头力学性能、形状恢复率的影响，并对影响接头力学性能和形状恢复率的接头组织和形貌进行了研究，得出了获得具有较高形状恢复率接头的焊接参数，从微观角度揭示了随机后热处理提高接头形状恢复率的内在原因，为TiNi形状记忆合金的开发和应用提供了基础，具有重大的理论和实际应用价值。
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| 关 键 词： | TiNi形状记忆合金 随机后热处理 形状恢复率 抗拉强度 焊接接头 电阻焊 |
| 文章编号： | 0253-360X(2001)01-01-04 |
| 收稿时间： | 2000/10/19 0:00:00 |
| 修稿时间： | 2000年10月19 |
Effect of Consequent Post Heat Treatment on the Joints in Precise Pulse Resistance Butt Welding |
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| ZHAO Xi-hu,HAN Li-jun and ZHAO Lei.Effect of Consequent Post Heat Treatment on the Joints in Precise Pulse Resistance Butt Welding[J].Transactions of The China Welding Institution,2001,22(1):1-4. |
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| Authors: | ZHAO Xi-hu HAN Li-jun and ZHAO Lei |
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| Affiliation: | Jilin University, Changchun 130022, China,Jilin University, Changchun 130022, China and Jilin University, Changchun 130022, China |
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| Abstract: | This paper studies the effect of consequent post heat treatment on the mechanical property and shape memory ratio Of the welded TiNi joints in TiNi shape memory alloy Precise pulse resistance butt welding,analyzes the joint structures and fractographies affecting mechanical property and shape memory ratio of welded joint by using strength testing,SEM and TEM, gets the optimum welding parameters obtaining good shape recovery ratio welded joint, and has discovered the inherent reason for proper consequent post heat treatment to promote the joint shape recovery ratio from microcosmic point. This is a base to exploit and develop TiNi shape memory alloy,and has great theoretical and practical values. |
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| Keywords: | TiNi shape memory alloy consequent post heat treatment shape recovery ratio strength tensile |
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