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题名: Characterizations of microstructure and crystallographic orientation in a near-alpha titanium alloy billet
作者: Zhao, Z. B.;  Wang, Q. J.;  Liu, J. R.;  Yang, R.
发表日期: 2017-7-25
摘要: Previous studies have found that the alpha+beta and near-alpha titanium alloys often contain large regions, referred as macrozones, with sharp local texture that differs from one region to the next. In this work the characterizations of microstructure and crystallographic orientation heterogeneities were studied by optical microscopy and electron backscattered diffraction techniques in a billet of a near-alpha titanium alloy Ti60. It was found that a heterogeneous microstructure, both in orientation distribution and morphology, comprising remnants of alpha lamellae along the axis direction and equiaxed alpha grain was found in the longitudinal section of the billet. In the billet, a weak <11-204>//AD fiber texture component was found, and this texture component was related to the special deformation mode for the billet and recrystallization texture in hexagonal close-packed metals. The deformation was mainly supported by prismatic slip in the alpha phase during forging according to in-grain misorientation axis analysis, while many subgrains/grains with low-angle boundaries were found within an apparent alpha grain under EBSD observation. (C) 2017 Elsevier B.V. All rights reserved.
刊名: JOURNAL OF ALLOYS AND COMPOUNDS
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
Zhao, Z. B.,Wang, Q. J.,Liu, J. R.,et al. Characterizations Of Microstructure And Crystallographic Orientation In A Near-alpha Titanium Alloy Billet[J]. Journal Of Alloys And Compounds,2017,712:179-184.

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