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Microstructure and Mechanical Properties of Ti-22Al-24Nb-0.5Mo EBW
Chen Wei1; Chen Zhiyong2; Zhao Tong1; Tang Zhenyun1
Corresponding AuthorChen Wei(werner_nju@163.com)
2017-06-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume46Pages:31-35
AbstractThe 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.
Keywordelectron beam welding intermetallics microstructure tensile properties
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000406570100007
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/124801
Collection中国科学院金属研究所
Corresponding AuthorChen Wei
Affiliation1.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
Recommended Citation
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.
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