Microstructure and Crystallography of α Phase Nucleated Dynamically during Thermo-Mechanical Treatments in Metastable β Titanium Alloy

Jiangkun Fan, Jinshan Li, Yudong Zhang, Hongchao Kou, Lionel Germain, Nathalie Siredey-Schwaller, Claude Esling

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12 引用 (Scopus)

摘要

The α phase nucleated dynamically during the thermo–mechanical coupling process in titanium alloy is really interesting but difficult to sufficiently ascertain. In the present work, the α phase nucleation behavior, the orientation relationship between α/β as well as the phase transformation kinetics during hot deformation of Ti-5553 alloy were investigated in-depth. Results reveal that the “necklace” microstructure formed. The Burgers orientation relationship between α/β phases has been destroyed gradually. The β → α phase transformation is obviously retarded during the hot compression due to the competitive effect of softening process (dynamic recovery/recrystallization). These results could provide valuable reference for process optimization and the microstructural evolution controlling.

源语言英语
文章编号1600859
期刊Advanced Engineering Materials
19
7
DOI
出版状态已出版 - 7月 2017

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