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Effect of carbon on the microstructure and element distribution in Ti42Al5Mn alloy
Tang, Hongjian1,2; Li, Xiaobing1; Xing, Weiwei1; Ma, Yingche1; Chen, Bo1; Liu, Kui1; Xia, Yuanhua3; Lin, Kun4
Corresponding AuthorLi, Xiaobing(xbli@imr.ac.cn) ; Liu, Kui(kliu@imr.ac.cn)
2020-11-21
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume36Issue:17Pages:1883-1892
AbstractThe role of C on microstructure and local chemical composition of an as-cast Ti42Al5Mn alloy was systematically characterised. Results show that C is enriched in alpha(2), less dissolved in gamma but depleted in beta (o) phase. Crossing the C-solubility limit, approximately 0.3 at. %, leads to the precipitation of h-type carbides (Ti2AlC). Furthermore, a correlation between the lattice site preference and the C-solubility is rationalised by neutron powder diffraction technique, suggesting that Mn tends to substitute the position of Al site within the gamma-phase (L1(0)-lattice) with an occupancy rate of 4.31%. Consequently, fewer Ti-6-type sites are formed where C is preferentially located. Finally, the interlamellar spacing and phase evolution as well as the preferential distribution of alloying elements are also evaluated.
Keywordγ -TiAl Carbon microstructure solubility Ti2AlC phase evolution element distribution neutron powder diffraction
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; China Postdoctoral Science Foundation
DOI10.1080/02670836.2020.1845435
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51971215] ; Natural Science Foundation of Liaoning Province[munber 2019-MS-330] ; China Postdoctoral Science Foundation[2019M661152]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000589105900001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141298
Collection中国科学院金属研究所
Corresponding AuthorLi, Xiaobing; Liu, Kui
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Peoples R China
3.Inst Nucl Phys & Chem, Key Lab Neutron Phys CAEP, Mianyang, Sichuan, Peoples R China
4.Univ Sci & Technol Beijing, Inst Solid State Chem, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Tang, Hongjian,Li, Xiaobing,Xing, Weiwei,et al. Effect of carbon on the microstructure and element distribution in Ti42Al5Mn alloy[J]. MATERIALS SCIENCE AND TECHNOLOGY,2020,36(17):1883-1892.
APA Tang, Hongjian.,Li, Xiaobing.,Xing, Weiwei.,Ma, Yingche.,Chen, Bo.,...&Lin, Kun.(2020).Effect of carbon on the microstructure and element distribution in Ti42Al5Mn alloy.MATERIALS SCIENCE AND TECHNOLOGY,36(17),1883-1892.
MLA Tang, Hongjian,et al."Effect of carbon on the microstructure and element distribution in Ti42Al5Mn alloy".MATERIALS SCIENCE AND TECHNOLOGY 36.17(2020):1883-1892.
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