焊管2025，Vol.48Issue(8)：33-42,51,11.DOI:10.19291/j.cnki.1001-3938.2025.08.004
激光粉末床熔融成形记忆合金的研究现状及展望
Research Status and Prospects of Shape Memory Alloys Fabricated by Laser Powder Bed Fusion
摘要
Abstract
Shape memory alloys(SMAs)are based on the thermoelastic martensitic transformation of an ordered phase,which can spontaneously achieve reversible deformation of the original shape upon exposure to external energy fields such as stress,temperature,or magnetic fields.These alloys are advanced intelligent materials that integrate sensing and actuation functionalities.The use of laser powder bed fusion(LPBF)technology to fabricate smart materials such as shape memory alloys introduces the time dimension into additive manufacturing,enabling controllable adjustment of the geometry,performance,and functionality of printed components under external excitation.This concept is known as 4D printing and has become one of the key research hotspots in the field of shape memory alloys.This article reviews recent domestic and international progress on shape memory alloys fabricated by LPBF technology,with particular emphasis on NiTi-based and Cu-based SMAs,including their formability,performance,and functional characteristics.It is recommended that future research focus on evaluating the performance and functional behavior of LPBF-derived shape memory alloys under complex environmental conditions,with an emphasis on enhancing their functional stability to accelerate practical engineering applications.关键词
形状记忆合金/激光粉末床熔融成形/NiTi基合金/Cu基合金/马氏体相变Key words
SMAs/laser powder bed fusion/NiTi-based alloys/Cu-based alloys/martensitic transformation分类
矿业与冶金引用本文复制引用
韩永典,刘敏倩,张颜坤,徐连勇..激光粉末床熔融成形记忆合金的研究现状及展望[J].焊管,2025,48(8):33-42,51,11.基金项目
国家自然科学基金面上项目"沉积态Cu基形状记忆合金的微观组织调控及性能协同提升机理研究"(项目编号52275365). （项目编号52275365）
