材料工程2024，Vol.52Issue(7)：15-32,18.DOI:10.11868/j.issn.1001-4381.2023.000823
激光增材制造中残余应力形成机理、表征及调控方法的研究进展
A critical review on residual stress in laser additive manufacturing:formation mechanism,characterization and control method
摘要
Abstract
Laser additive manufacturing(LAM)enables the integrated direct formation of high-performance metallic components with complex geometry.However,the non-uniform distribution of temperature gradients,in-situ heat treatment effects,non-equilibrium solid phase transformations,and heterogeneous microstructure during the process result in intricate residual stresses that significantly affect the quality and overall performance.A comprehensive review of residual stress in LAM by introducing its fundamental definition and classification is provided in this paper.Furthermore,the particularity,formation mechanisms,characterization methods,and regulation techniques associated with residual stress in LAM is systematically reviewed.The subsequent sections introduce various characterization methods for residual stress in LAM components,along with their respective characteristics.Additionally,the applicability,advantages,and disadvantages of each method are presented.Furthermore,the methods for controlling residual stress can be categorized into post-treatment control and in-situ treatment control.Finally,the joint effect of different types of residual stress should be considered in the study of the cause and evolution mechanism of residual stress in LAM.The characterization method of residual stress should be integrated with various methods to facilitate mutual verification.To mitigate the impact of stress concentration on the printing process and resultant quality,as well as minimize the influence of post-processing stress on part accuracy,it is imperative to investigate in-situ control methods for residual stress and explore real-time online monitoring techniques for LAM.关键词
激光增材制造/残余应力/残余应力表征/有限元仿真/残余应力调控Key words
laser additive manufacturing/residual stress/residual stress characterization/finite element simulation/residual stress control分类
矿业与冶金引用本文复制引用
王瑞鑫,陈超越,徐松哲,帅三三,胡涛,李霞,王保军,王江,任忠鸣..激光增材制造中残余应力形成机理、表征及调控方法的研究进展[J].材料工程,2024,52(7):15-32,18.基金项目
国家重点研发计划项目(2021YFB3702502) （2021YFB3702502）
国家自然科学基金项目(52127807,52001191,52271035) （52127807,52001191,52271035）
上海市自然基金面上项目(23ZR1421500) （23ZR1421500）
800所科技创新基金项目(SPMI2022-06) （SPMI2022-06）
省部共建高品质特殊钢冶金与制备国家重点实验室、上海市钢铁冶金新技术开发应用重点实验室自主课题(SKLASS2022-Z10) （SKLASS2022-Z10）
上海市科学技术委员会项目(19DZ2270200) （19DZ2270200）
