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Characterization of curve ribbon boride with blocks in a Ti-45Al-2Nb-2Mn-1B alloy
Zhang, Min1; Yan, Yingwei1; Liu, Renci2; Gao, Yulin1; Sun, Yanhua1; Tan, Zhunli1
Corresponding AuthorZhang, Min(zhangm@bjtu.edu.cn)
2021-11-01
Source PublicationINTERMETALLICS
ISSN0966-9795
Volume138Pages:6
AbstractBorides are very important in cast TiAl alloys. Among various morphologies and structures, the long curve ribbon borides are harmful to mechanical properties and need to be avoided or refined. The knowledge on curve ribbon is relatively less than fine boride particles. In the present work, a long ribbon with blocky borides at both ends is studied by SEM, HRTEM , and STEM-EDS method. The ribbon consists of nanoflakes of 4 boride structures and a B2 layer. The blocky boride is Ti3B4 with a D7(b) structure. The ribbon contains flakes with the structures of D7(b), B27, B-f, C32, and B2. The block is adhesive to the ribbon by a B2 layer with a width of several nanometers. Mn is found to segregate to B2/borides interfaces inside the ribbon. Nb is rich in borides but poor in the B2 phase.
KeywordTiAl Casting Microstructure Segregation Electron microscopy Transmission
Funding OrganizationFundamental Research Funds for the Central Universities
DOI10.1016/j.intermet.2021.107318
Indexed BySCI
Language英语
Funding ProjectFundamental Research Funds for the Central Universities[2019JBM044]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000696861900004
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167052
Collection中国科学院金属研究所
Corresponding AuthorZhang, Min
Affiliation1.Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Mat Sci & Engn Res Ctr, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Min,Yan, Yingwei,Liu, Renci,et al. Characterization of curve ribbon boride with blocks in a Ti-45Al-2Nb-2Mn-1B alloy[J]. INTERMETALLICS,2021,138:6.
APA Zhang, Min,Yan, Yingwei,Liu, Renci,Gao, Yulin,Sun, Yanhua,&Tan, Zhunli.(2021).Characterization of curve ribbon boride with blocks in a Ti-45Al-2Nb-2Mn-1B alloy.INTERMETALLICS,138,6.
MLA Zhang, Min,et al."Characterization of curve ribbon boride with blocks in a Ti-45Al-2Nb-2Mn-1B alloy".INTERMETALLICS 138(2021):6.
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