Microstructure and Mechanical Properties of Ti-22Al-24Nb-0.5Mo EBW

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	Microstructure and Mechanical Properties of Ti-22Al-24Nb-0.5Mo EBW
	Chen Wei 1; Chen Zhiyong 2; Zhao Tong 1; Tang Zhenyun 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2017-06-01
卷号	46 页码:31-35
关键词	electron beam welding intermetallics microstructure tensile properties
ISSN号	1002-185X
通讯作者	Chen Wei(werner_nju@163.com)
英文摘要	The microstructure and mechanical properties of Ti-22Al-24Nb-0.5Mo electron beam weld was investigated. The FZ (fusion zone) is composed of fully collunar B2 grains in the FZ center and the dentritic B2 grains on top and bottom of the weld. Their distribution is symmetrical to the fusion line center. Two post-weld annealing schedules, namely 850 degrees C/2 h/AC (aged) and 980 degrees C/2 h+850 degrees C/24 h/AC (solution treat+aged, STA), have been carried out. The STA weld exhibits a coarser O phase than the aged weld in the FZ and the alpha(2) phase reappears. The tensile strength at room temperature of the welds for these two annealing conditions are similar, while the aged weld is a little stronger at high temperature. The creep rupture life of the STA weld is higher, and the fracture mode is intergranular for both aged and STA welds.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000406570100007
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/124800]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen Wei
作者单位	1.Beijing Aeronaut Mfg Technol Res Inst, Power Beam Proc Lab, Beijing 100024, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Chen Wei,Chen Zhiyong,Zhao Tong,et al. Microstructure and Mechanical Properties of Ti-22Al-24Nb-0.5Mo EBW[J]. RARE METAL MATERIALS AND ENGINEERING,2017,46:31-35.
APA	Chen Wei,Chen Zhiyong,Zhao Tong,&Tang Zhenyun.(2017).Microstructure and Mechanical Properties of Ti-22Al-24Nb-0.5Mo EBW.RARE METAL MATERIALS AND ENGINEERING,46,31-35.
MLA	Chen Wei,et al."Microstructure and Mechanical Properties of Ti-22Al-24Nb-0.5Mo EBW".RARE METAL MATERIALS AND ENGINEERING 46(2017):31-35.