| 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 Author | Li, Xiaobing(xbli@imr.ac.cn) ; Liu, Kui(kliu@imr.ac.cn) |
| 2020-11-21 | |
| Source Publication | MATERIALS SCIENCE AND TECHNOLOGY
 |
| ISSN | 0267-0836 |
| Volume | 36Issue:17Pages:1883-1892 |
| Abstract | The 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. |
| Keyword | γ -TiAl Carbon microstructure solubility Ti2AlC phase evolution element distribution neutron powder diffraction |
| Funding Organization | National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; China Postdoctoral Science Foundation |
| DOI | 10.1080/02670836.2020.1845435 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51971215] ; Natural Science Foundation of Liaoning Province[munber 2019-MS-330] ; China Postdoctoral Science Foundation[2019M661152] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000589105900001 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/141298 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Xiaobing; Liu, Kui |
| Affiliation | 1.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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