Effect of ultrasonic spot welding on the mechanical behaviour of NiTi shape memory alloys

Zhang W.; Ao S. S.; Oliveira J. P.; Zeng Z.; Luo Z.; Hao Z. Z.

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Effect of ultrasonic spot welding on the mechanical behaviour of NiTi shape memory alloys

机译：超声波焊接对NITI形记忆合金力学行为的影响

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摘要

NiTi shape memory alloy joints were obtained using ultrasonic spot welding and the effect of this manufacturing process on the mechanical behaviour was investigated. Comparing to the as-received NiTi, the welded material presented increasing austenite transformation temperatures and decreasing martensite finish transformation temperatures. No detrimental intermetallic compounds were found at the weld interface due to the advantages of this solid-state welding technology. A typical interfacial fracture mode was observed at the fracture surface with numerous cleavage planes and micro cracks. Additionally, plastically deformed regions were observed in the weld spot. Ultrasonic welding can be used to effectively join NiTi shape memory alloys.

机译：使用超声波点焊获得NITI形状记忆合金接头，并研究了该制造过程对机械行为的影响。与接收的Niti相比，焊接材料提高了奥氏体转化温度和降低马氏体结束变换温度。由于该固态焊接技术的优点，在焊接界面中没有发现不利的金属间化合物。在裂缝表面观察到典型的界面裂缝模式，具有许多切割平面和微裂缝。另外，在焊接点中观察到塑性变形区域。超声波焊接可用于有效连接NITI形状记忆合金。

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来源
《Smart Materials & Structures》 |2018年第8期|共6页
作者
Zhang W.; Ao S. S.; Oliveira J. P.; Zeng Z.; Luo Z.; Hao Z. Z.;
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作者单位

Tianjin Univ Sch Mat Sci &

Engn Tianjin 300072 Peoples R China;

Tianjin Univ Sch Mat Sci &

Engn Tianjin 300072 Peoples R China;

Ohio State Univ Dept Mat Sci &

Engn 1248 Arthur E Adams Dr Columbus OH 43221 USA;

Univ Elect Sci &

Technol China Sch Mechatron Engn Chengdu 221116 Sichuan Peoples R China;

Tianjin Univ Sch Mat Sci &

Engn Tianjin 300072 Peoples R China;

Tianjin Univ Sch Mat Sci &

Engn Tianjin 300072 Peoples R China;

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正文语种 eng
中图分类智能材料;
关键词
NiTi shape memory alloy; ultrasonic spot welding; phase transformation; phase composition; interfacial fracture;

机译：NITI形状记忆合金;超声波焊接;相变;相组成;界面骨折;

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专利

1. Effect of ultrasonic spot welding on the mechanical behaviour of NiTi shape memory alloys (vol 27, 085020, 2018) [J] . Zhang W., Ao S. S., Oliveira J. P., Smart Materials & Structures . 2018,第10期

机译：超声波焊接对NITI形状记忆合金力学行为的影响（Vol 27,085020,2018）
2. Effect of ultrasonic spot welding on the mechanical behaviour of NiTi shape memory alloys [J] . Zhang W., Ao S. S., Oliveira J. P., Smart Materials & Structures . 2018,第8期

机译：超声波焊接对NITI形记忆合金力学行为的影响
3. Laser welding of a NiTi alloy: Mechanical and shape memory behaviour [J] . A. Falvo, F.M. Furgiuele, C. Maletta Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing . 2005,第1a2期

机译：NiTi合金的激光焊接：机械和形状记忆行为
4. On the transformation behaviour, mechanical properties and biocompatibility of two NiTi based shape memory alloys: NiTi42 and NiTi42Cu7 [C] . Mohammed Es-Souni, Martha Es-Souni, Helge Fischer Brandies Materials Research Society Symposium . 2001

机译：基于Niti形状记忆合金的转化行为，力学性能和生物相容性：Niti42和Niti42Cu7
5. In Situ Diffraction Investigations of Mechanisms that Lead to Path Dependent Mechanical Behaviours of Nickel-Titanium Shape Memory Alloys [D] . Dahal, Jinesh . 2020

机译：原位衍射调查导致镍钛形状记忆合金的路径依赖性机械行为的机制
6. Microstructure and Mechanical Properties of an Ultrasonic Spot Welded Aluminum Alloy: The Effect of Welding Energy [O] . He Peng, Daolun Chen, Xianquan Jiang 2017

机译：超声点焊铝合金的组织和力学性能：焊接能量的影响
7. Microstructure and Mechanical Properties of an Ultrasonic Spot Welded Aluminum Alloy: The Effect of Welding Energy [O] . He Peng, Daolun Chen, Xianquan Jiang 2017

机译：超声波点焊铝合金的组织与力学性能：焊接能量的影响

Effect of ultrasonic spot welding on the mechanical behaviour of NiTi shape memory alloys

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