Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys

doi:10.1016/j.matdes.2022.111378

IMR OpenIR

	Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys
	Cao, Ruxin 1,2; Liu, Renci 1,2; Ye, Xicong 3; Xu, Mengxi 1,2; Shan, Zhiqiang 2; Cui, Yuyou 1,2; Yang, Rui 1,2
通讯作者	Liu, Renci(rcliu@imr.ac.cn) ; Yang, Rui(ryang@imr.ac.cn)
	2022-12-01
发表期刊	MATERIALS & DESIGN
ISSN	0264-1275
卷号	224 页码:10
摘要	The morphology and crystal structure of borides in Ti-45Al-2Mn-2Nb-xB (at.%) alloys containing different amount of B have been investigated to reveal the relationship between B content and boride formation. In alloys containing 0.25 at.% and 0.5 at.% B, boride particles are curved and flake-like, and are distributed at b dendrite boundaries, resulting from late nucleation and constrained by matrix during growth. Curved, ribbon-like boride particles are observed to randomly distribute in alloy containing 0.75 at.% B, and insuf-ficient behind-time supply of B atoms to the growth front is believed to be responsible for their irregularity and large curvature bending and branching. In alloys containing 1.0 at.% or higher B, straight needle/rod-like boride particles dominate, and a small number of blocky particles appear in alloys containing 1.25 at.% and 1.5 at.% B. Most boride particles are of C32-TiB2 and have their major axes along [0001] or [1 (2) over bar 10] in all alloys studied in this work, and B-f-TiB and D7(b)-Ti3B4 randomly appear in conjunction with C32-TiB2 to form intergrowths, while B27-TiB particles are free standing and only appear in alloys containing 1 at.% or higher B. (C) 2022 The Author(s). Published by Elsevier Ltd.
关键词	gamma-TiAl Borides Solidification Formation mechanism Morphology
资助者	CAS Project for Young Scientists in Basic Research ; National Natural Science Foundation of China ; Major Special Science and Technology Project of Yunnan Province
DOI	10.1016/j.matdes.2022.111378
收录类别	SCI
语种	英语
资助项目	CAS Project for Young Scientists in Basic Research ; National Natural Science Foundation of China ; Major Special Science and Technology Project of Yunnan Province ; [YSBR-025] ; [51701209] ; [51604161] ; [202002AB080001-3]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000891761700007
出版者	ELSEVIER SCI LTD
引用统计	被引频次：6[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/321006/175981
专题	中国科学院金属研究所
通讯作者	Liu, Renci; Yang, Rui
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.China Three Gorges Univ, Coll Mech & Power Engn, Yichang 443002, Peoples R China
推荐引用方式 GB/T 7714	Cao, Ruxin,Liu, Renci,Ye, Xicong,et al. Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys[J]. MATERIALS & DESIGN,2022,224:10.
APA	Cao, Ruxin.,Liu, Renci.,Ye, Xicong.,Xu, Mengxi.,Shan, Zhiqiang.,...&Yang, Rui.(2022).Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys.MATERIALS & DESIGN,224,10.
MLA	Cao, Ruxin,et al."Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys".MATERIALS & DESIGN 224(2022):10.