Effect of Low and High Double Heat Treatment on Fracture Toughness of TC4 Titanium Alloy Fabricated by Selective Laser Melting

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	Effect of Low and High Double Heat Treatment on Fracture Toughness of TC4 Titanium Alloy Fabricated by Selective Laser Melting
	Li Yuhai 1; Zuo Baiqiang 1,2; Cai Yusheng 2; Jiang Muchi 1,2; Ren Dechun 2; Ji Haibin 2; Lei Jiafeng 2
通讯作者	Ji Haibin(hbji@imr.ac.cn)
	2022-05-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	51 期号:5 页码:1864-1872
摘要	The effect of different heat treatment temperatures on microstructure and fracture toughness of TC4 titanium alloy fabricated by selective laser melting (SLM) was studied. The results show that the microstructure of low temperature annealed alloy is characterized by a large number of acicular martensite alpha' phase and beta phase. The longitudinal section is characterized by columnar crystals growing along the forming direction. The angle between the acicular martensite alpha' phase and the forming direction is about 45 degrees. After heat treatment, the acicular alpha' phase is transformed into lamellar alpha phase, forming alpha+beta lath structure. With the increase of heat treatment temperature, the alpha lamellar coarsens gradually, the zigzags of crack propagation path increase, and the fracture toughness gradually increases from 43.1 MPa.m(1/2) to 109 MPa.m(1/2).
关键词	selective laser melting TC4 titanium alloy heat treatment fracture toughness
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000813756100043
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174907
专题	中国科学院金属研究所
通讯作者	Ji Haibin
作者单位	1.Shenyang Ligong Univ, Shenyang 110159, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li Yuhai,Zuo Baiqiang,Cai Yusheng,et al. Effect of Low and High Double Heat Treatment on Fracture Toughness of TC4 Titanium Alloy Fabricated by Selective Laser Melting[J]. RARE METAL MATERIALS AND ENGINEERING,2022,51(5):1864-1872.
APA	Li Yuhai.,Zuo Baiqiang.,Cai Yusheng.,Jiang Muchi.,Ren Dechun.,...&Lei Jiafeng.(2022).Effect of Low and High Double Heat Treatment on Fracture Toughness of TC4 Titanium Alloy Fabricated by Selective Laser Melting.RARE METAL MATERIALS AND ENGINEERING,51(5),1864-1872.
MLA	Li Yuhai,et al."Effect of Low and High Double Heat Treatment on Fracture Toughness of TC4 Titanium Alloy Fabricated by Selective Laser Melting".RARE METAL MATERIALS AND ENGINEERING 51.5(2022):1864-1872.