激光粉末床熔融成形TC4钛合金疲劳与断裂韧度研究进展OA
Research progress in fatigue and fracture toughness of TC4 titanium alloy formed by laser powder bed fusion
激光粉末床熔融成形(LPBF)TC4钛合金,是现阶段航空、航天、医疗、电子等领域实现轻量化和一体化制造的重要技术途径.本文系统总结了激光粉末床熔融成形TC4钛合金的微观组织与缺陷的影响规律及其机理,详细综述了国内外研究者在工艺参数及热处理方式对于LPBF成形TC4钛合金拉伸性能影响的研究现状.在此基础上,针对现阶段激光粉末床熔融TC4钛合金的应用瓶颈问题,对LPBF成形TC4钛合金的疲劳性能和断裂韧度的研究现状进行了系统总结,在提出改善增材制造TC4钛合金疲劳性能和断裂韧度的后处理方式的同时展望其发展趋势.
The application of laser powder bed fusion(LPBF)on TC4 titanium alloy is an important way to achieve lightweight and integration in aviation,aerospace,medical,electronics,and other fields at present.In this paper,the effects of laser powder bed fusion on microstructure and defects of TC4 titanium alloy and its mechanism are systematically summarized.The research status of the influence of LPBF parameters and heat treatment methods on the tensile properties of TC4 alloy formed by LPBF is reviewed in detail as well.On this basis,in view of the bottleneck on application of LPBF TC4 titanium alloy at the present stage,the research status of fatigue properties and fracture toughness of TC4 alloy formed by LPBF is systematically summarized,and the effective post processing methods to improve the fatigue property and fracture toughness of TC4 titanium alloy fabricated by additive manufacturing are pointed out,and the development trends are also discussed.
邹定锦;张亮;吴文恒
上海材料研究所 上海3D打印材料工程技术研究中心,上海 200437上海材料研究所 上海3D打印材料工程技术研究中心,上海 200437上海材料研究所 上海3D打印材料工程技术研究中心,上海 200437
通用工业技术
激光粉末床熔融TC4钛合金拉伸性能断裂韧度疲劳性能
laser powder bed fusionTC4 titanium alloytensile propertyfracture toughnessfatigue property
《材料工程》 2026 (9)
66-75,10
国家重点研发计划(2022YFB4601002)上海市青年科技启明星计划资助(22QB1401300)
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