IMR OpenIR
Diffusion Bonding of Dissimilar Intermetallic Alloys Based on Ti2AlNb and TiAl
Zou, Jianying1; Cui, Yuyou2; Yang, Rui2
Corresponding AuthorZou, Jianying(zjyimr@163.com)
2009-11-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume25Issue:6Pages:819-824
AbstractDirect diffusion bonding of an orthorhombic Ti2AlNb base alloy to a TiAl base alloy, Ti-22Al-23Nb-2Ta and Ti-46.2Al-2Cr-2Nb-0.15B (at. pct), was carried out and the interface microstructure, formation of new phase at the interface and joint strength were characterized. At low temperature, a new phase with AlNb2-structure, Al(Nb, Ti)(2), was formed in the interface region adjacent to the 0 base alloy. The alpha(2) was found to be the major reaction product and developed in the interface region adjacent to the TiAl alloy as well as in the region adjacent to the O base alloy accompanying the formation of Al(Nb, Ti)(2). The occurrence of Al(Nb, Ti)(2) has been attributed to the different diffusivity of Nb and Al, leading to a eutectoid-like reaction. At relatively high temperature, Al(Nb, Ti)(2) did not form due to enhanced diffusion of Nb but a B2-enriched zone formed on the O alloy side instead after long holding time. Only when an appropriate interface microstructure was achieved by optimizing the bonding parameters, could the shear strength of the joint reach 80% of that of the TiAl base alloy.
KeywordDiffusion bonding Interface Shear strength TiAl Orthorhombic alloy
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000272784100021
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/97466
Collection中国科学院金属研究所
Corresponding AuthorZou, Jianying
Affiliation1.China Univ Petr, Dongying 257061, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zou, Jianying,Cui, Yuyou,Yang, Rui. Diffusion Bonding of Dissimilar Intermetallic Alloys Based on Ti2AlNb and TiAl[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2009,25(6):819-824.
APA Zou, Jianying,Cui, Yuyou,&Yang, Rui.(2009).Diffusion Bonding of Dissimilar Intermetallic Alloys Based on Ti2AlNb and TiAl.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,25(6),819-824.
MLA Zou, Jianying,et al."Diffusion Bonding of Dissimilar Intermetallic Alloys Based on Ti2AlNb and TiAl".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 25.6(2009):819-824.
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