Effect of carbon on the microstructure and element distribution in Ti42Al5Mn alloy

doi:10.1080/02670836.2020.1845435

IMR OpenIR

	Effect of carbon on the microstructure and element distribution in Ti42Al5Mn alloy
	Tang, Hongjian 1,2; Li, Xiaobing 1; Xing, Weiwei 1; Ma, Yingche 1; Chen, Bo 1; Liu, Kui 1; Xia, Yuanhua 3; Lin, Kun 4
通讯作者	Li, Xiaobing(xbli@imr.ac.cn) ; Liu, Kui(kliu@imr.ac.cn)
	2020-11-21
发表期刊	MATERIALS SCIENCE AND TECHNOLOGY
ISSN	0267-0836
卷号	36 期号:17 页码:1883-1892
摘要	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.
关键词	γ -TiAl Carbon microstructure solubility Ti2AlC phase evolution element distribution neutron powder diffraction
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; China Postdoctoral Science Foundation
DOI	10.1080/02670836.2020.1845435
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51971215] ; Natural Science Foundation of Liaoning Province[munber 2019-MS-330] ; China Postdoctoral Science Foundation[2019M661152]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000589105900001
出版者	TAYLOR & FRANCIS LTD
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/141298
专题	中国科学院金属研究所
通讯作者	Li, Xiaobing; Liu, Kui
作者单位	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
推荐引用方式 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.