铸造技术2026，Vol.47Issue(2)：115-127,13.DOI:10.16410/j.issn1000-8365.2026.5284
选区激光熔化钛合金多尺度模拟研究现状及展望
Research Status and Prospects of Multiscale Simulation for Selective Laser Melting of Titanium Alloys
摘要
Abstract
Titanium alloys,which are endowed with excellent properties of low density and high strength,have broad application prospects in the field of aerospace structural components.However,traditional manufacturing methods are constrained by the intrinsic characteristics of titanium alloys,such as high melting points and low thermal conductivity,resulting in exorbitant production costs and thus limiting their large-scale application.As a mainstream metal additive manufacturing technology,selective laser melting(SLM)leverages the process advantage of layer-by-layer deposition to enable precision fabrication of complex structural components,providing an effective solution to the processing challenges of titanium alloys while promising reduced production costs and enhanced production efficiency.Nevertheless,the SLM process involves a nonequilibrium physical metallurgical process encompassing light-to-heat energy conversion and material phase transformation,where microscopic physical phenomena are difficult to observe directly.Moreover,experimental process optimization via the trial-and-error approach suffers from long cycles and high costs,whereas numerical simulation has become a crucial means to uncover the intrinsic process mechanisms and drive the rational design of processes.Focusing on the forming process of SLM-fabricated titanium alloys,this paper comprehensively reviews the research progress in multiphysics field simulations and methodologies,defect prediction and control,and microstructure evolution simulations.The principles,advantages and applicable scenarios of different simulation methods are analysed.Finally,on the basis of an in-depth analysis of current relevant research,the numerous challenges remaining in the field of simulation studies on selective laser melting of titanium alloys are summarized,and prospects are proposed.关键词
选区激光熔化/多物理场模拟/缺陷预测及控制/微观结构演化/钛合金Key words
selective laser melting/multiphysics field simulation/defect prediction and control/microstructure evolution/titanium alloys分类
矿业与冶金引用本文复制引用
翟浩宇,樊江昆,马尹凡,唐璐瑶,焦点,张智鑫,陈彪,王军,李金山..选区激光熔化钛合金多尺度模拟研究现状及展望[J].铸造技术,2026,47(2):115-127,13.基金项目
国家自然科学基金(52274396) （52274396）
凝固技术全国重点实验室自主课题(2024-ZD-03) （2024-ZD-03）
陕西省自然科学基础研究面上项目(2025JC-YBMS-494) （2025JC-YBMS-494）
