Laser additive manufacturing of titanium alloys:process,materials and post-processing  

作　　者：Jin-Long Su Fu-Lin Jiang Jie Teng Le-Qun Chen Guillermo Requena Ming Yan Lai-Chang Zhang Y.Morris Wang Ilya V.Okulov Hong-Mei Zhu Guo-Wei Bo You-Xiang Chew Chao-Lin Tan 

机构地区：[1]Singapore Institute of Manufacturing Technology(SIMTech),Agency for Science,Technology and Research(A*STAR),Singapore,999002,Singapore [2]College of Materials Science and Engineering,Hunan University,Changsha,410082,China [3]German Aerospace Center(DLR),Institute of Materials Research,51147,Cologne,Germany [4]Metallic Structures and Materials Systems for Aerospace Engineering,RWTH Aachen University,52062,Aachen,Germany [5]Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China [6]Centre for Advanced Materials and Manufacturing,Edith Cowan University,Joondalup,WA,6027,Australia [7]Department of Materials Science and Engineering,University of California,Los Angeles,CA,900095,USA [8]Leibniz Institute for Materials Engineering-IWT,28359,Bremen,Germany [9]Faculty of Production Engineering,University of Bremen,28359,Bremen,Germany [10]Key Laboratory of Hunan Province of Equipment Safety Service Technology Under Extreme Environment,University of South China,Hengyang,421001,China [11]Key Laboratory of Efficient and Clean Energy Utilization,College of Energy and Power Engineering,Changsha University of Science and Technology,Changsha,410114,China

出　　处：《Rare Metals》2024年第12期6288-6328,共41页稀有金属(英文版)

基　　金：financially supported by the 2022 MTC Young Individual Research Grants under Singapore Research,Innovation and Enterprise(RIE)2025 Plan(No.M22K3c0097);the Natural Science Foundation of US(No.DMR-2104933);the sponsorship of the China Scholarship Council(No.202106130051)。

摘　　要：Laser additive manufacturing(LAM)of titanium(Ti)alloys has emerged as a transformative technology with vast potential across multiple industries.To recap the state of the art,Ti alloys processed by two essential LAM techniques(i.e.,laser powder bed fusion and laser-directed energy deposition)will be reviewed,covering the aspects of processes,materials and post-processing.The impacts of process parameters and strategies for optimizing parameters will be elucidated.Various types of Ti alloys processed by LAM,includingα-Ti,(α+β)-Ti,andβ-Ti alloys,will be overviewed in terms of micro structures and benchmarking properties.Furthermore,the post-processing methods for improving the performance of L AM-processed Ti alloys,including conventional and novel heat treatment,hot isostatic pressing,and surface processing(e.g.,ultrasonic and laser shot peening),will be systematically reviewed and discussed.The review summarizes the process windows,properties,and performance envelopes and benchmarks the research achievements in LAM of Ti alloys.The outlooks of further trends in LAM of Ti alloys are also highlighted at the end of the review.This comprehensive review could serve as a valuable resource for researchers and practitioners,promoting further advancements in LAM-built Ti alloys and their applications.

关 键 词：Additive manufacturing Titanium alloy Process parameter POST-PROCESSING Microstructure and property FATIGUE 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TG665[金属学及工艺—金属材料]