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

IMR OpenIR

	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.
	2018-05-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	139 页码:59-62
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.
部门归属	[shi, zhiwu] aecc commercial aircraft engine co ltd, dept mat sci & mfg proc, shanghai 200241, peoples r china ; [wei, hua ; zhang, hongyu ; jin, tao ; sun, xiaofeng ; zheng, qi] chinese acad sci, inst met res, superalloys div, 72 wenhua rd, shenyang 110016, liaoning, peoples r china
关键词	Nickel-based Superalloy Grain-boundaries Twin Boundary Microstructure Phase Si Transformations Dislocations Deformation Composites
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
资助者	MSBRDP of China [2010CB631206]; NNSF of China [51371173]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79321
专题	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.