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邓怀波,陈玉华,李树寒,邓云发,许明方,季迪.NiTi形状记忆合金激光增材制造研究进展[J].稀有金属材料与工程(英文),2019,48(12):4119~4130.[DENG Huai-bo,CHEN Yu-hua,LI Shu-han,DENG Yun-fa,XU Ming-fang and JI Di.Research Progress on the Laser Additive Manufacturing Technology of NiTi Shape Memory Alloys[J].Rare Metal Materials and Engineering,2019,48(12):4119~4130.]
Research Progress on the Laser Additive Manufacturing Technology of NiTi Shape Memory Alloys
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Received:October 29, 2018  Revised:November 27, 2018
DOI:
Key words: NiTi shape memory alloys  Laser additive manufacturing  Process method  Microstructure  Functional properties
Foundation item:国家自然科学基金(51565040)、航空科学基金(2014ZE56016)、江西省科技计划项目(20151BBE50034)
Author NameAffiliation
DENG Huai-bo,CHEN Yu-hua,LI Shu-han,DENG Yun-fa,XU Ming-fang and JI Di  
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Abstract:
      NiTi shape memory alloys have received extensive attention due to their excellent functional properties, biocompatibility, damping properties, low stiffness, and corrosion resistance. However, the processability and machinability of NiTi shape memory alloys are of great difficulties. In the past 20 years, the additive manufacturing technology has been developed sharply, resulting in the direct fabrication for complex structure of NiTi shape memory alloys, which has a great potential value in the aerospace, medical equipment and other fields. This paper makes a comprehensive review of the key issues and solutions in the domestic and foreign NiTi shape memory alloys laser additive manufacturing researches, including comparison the traditional process manufacturing and additive manufacturing of NiTi shape memory alloys. Effect of laser additive manufacturing process parameters and post-heat treatment parameters on the microstructure, the mechanical properties and the functional properties of NiTi shape memory alloys. Based on research results, it is predicted that the future direction of NiTi shape memory alloys laser additive manufacturing.