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Abstract:
TiNi形状记忆合金与不锈钢瞬间液相扩散焊连接方法属于异种材料连接技术领域。现有TiNi形状记忆合金与不锈钢的连接技术存在焊接裂纹,热影响区晶粒粗大,力学性能差等问题。本发明通过将TiNi形状记忆合金与不锈钢的待焊面和AgCuTi箔表面清洁干燥后,组合成TiNi形状记忆合金/AgCuTi金属箔/不锈钢结构,再用焊接卡具固定,并置于真空扩散炉内,施加焊接压力和温度,实现TiNi形状记忆合金与不锈钢的瞬间液相扩散连接。本发明方法焊接温度低(相对于熔焊),对母材影响小,接头无焊接缺陷,接头室温剪切强度达到250MPa,近缝区的显微硬度达670Hv。
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Patent Info :
Type: 发明授权
Patent No.: CN200810222222.2
Filing Date: 2008-09-12
Publication Date: 2010-06-02
Pub. No.: CN101362253B
Applicants: 北京工业大学
Legal Status: 未缴年费
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WoS CC Cited Count: 0
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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