Determination of orientation relationships between FCC-hydride and HCP-titanium and their correlation with hydrides distribution

JOURNAL OF ALLOYS AND COMPOUNDS

卷:817

Article

Wen, Jing¹  Allain, Nathalie¹  Fleury, Eric¹ 

[1] Univ Lorraine, LEM3, Arts & Metiers ParisTech, CNRS, F-57000 Metz, France

关键词: Titanium hydride;    Orientation relationships;    Interface planes;    Electron backscatter diffraction;    Grain orientation;   

DOI  :  10.1016/j.jallcom.2019.153297

来源: Elsevier

【 摘 要 】

Since the crystallographic orientation relationships (ORs) play an important role in the hydrides precipitation as well as in the deformation behavior of alpha-titanium alloys containing hydrides, the present work aimed at exploring thoroughly the ORs and their interface planes between the fcc-hydride and the alpha-titanium using the stereographic projections of the corresponding OR plane and OR direction and a trace analysis. In addition to the general reported two ORs in the alpha-titanium, a new OR closely related to the texture component of the rolled Ti-sheet is also determined in the present work. The overall identified ORs and their interface planes are accounted for by edge-to-edge matching model. Furthermore, a quantitative analysis using the high-angular resolution SEM-EBSD highlighted the dependency of hydride distribution on the ORs and the parent grain orientation. (C) 2019 Elsevier B.V. All rights reserved.

【 授权许可】

Free