Characterization and crystallographic analyses of new three-fold Ti(O,C) nanotwins in a hot-pressed Nb-Ti-al alloy

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	Characterization and crystallographic analyses of new three-fold Ti(O,C) nanotwins in a hot-pressed Nb-Ti-al alloy
	Shi, ZW; Wei, H; Zhang, HY; Jin, T; Sun, XF; Zheng, Q; Zheng, Q (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
刊名	MATERIALS CHARACTERIZATION
	2018-05-01
卷号	139 页码:59-62
关键词	Nickel-based Superalloy Grain-boundaries Twin Boundary Microstructure Phase Si Transformations Dislocations Deformation Composites
ISSN号	1044-5803
英文摘要	In this article, two new types of three-fold Ti(O,C) twins were observed, and the crystallographic relationships of the twins have been analyzed in depth. The difference in the intersection angles of primary twin boundaries derives from different crystallographic operations forming the face-centered cubic Ti(O,C) twins: two consecutive rotations of 70.5 degrees counter-clockwise or clockwise around the [011] axis. Using double and triple Thompson tetrahedrons, the ambiguity of a three-fold twin in TEM observation is clarified by the analysis of the common [011] axis. These findings might bring about substantial insights to the crystallographic understanding of three-fold twins.; In this article, two new types of three-fold Ti(O,C) twins were observed, and the crystallographic relationships of the twins have been analyzed in depth. The difference in the intersection angles of primary twin boundaries derives from different crystallographic operations forming the face-centered cubic Ti(O,C) twins: two consecutive rotations of 70.5 degrees counter-clockwise or clockwise around the [011] axis. Using double and triple Thompson tetrahedrons, the ambiguity of a three-fold twin in TEM observation is clarified by the analysis of the common [011] axis. These findings might bring about substantial insights to the crystallographic understanding of three-fold twins.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
语种	英语
资助机构	MSBRDP of China [2010CB631206]; NNSF of China [51371173]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79321]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zheng, Q (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Shi, ZW,Wei, H,Zhang, HY,et al. Characterization and crystallographic analyses of new three-fold Ti(O,C) nanotwins in a hot-pressed Nb-Ti-al alloy[J]. MATERIALS CHARACTERIZATION,2018,139:59-62.
APA	Shi, ZW.,Wei, H.,Zhang, HY.,Jin, T.,Sun, XF.,...&Zheng, Q .(2018).Characterization and crystallographic analyses of new three-fold Ti(O,C) nanotwins in a hot-pressed Nb-Ti-al alloy.MATERIALS CHARACTERIZATION,139,59-62.
MLA	Shi, ZW,et al."Characterization and crystallographic analyses of new three-fold Ti(O,C) nanotwins in a hot-pressed Nb-Ti-al alloy".MATERIALS CHARACTERIZATION 139(2018):59-62.