Ultrasonic velocity variation of Ti6Al4V Ti-alloy bars under conventional forging combined with triple heat treatment

In this paper, the microstructure evolution and ultrasonic velocity variation of Ti6Al4V Ti-alloy bars under different conventional forging deformation degrees and triple heat treatment were investigated, it was found that the the orientation of microstructure is the main factor influencing the ultr...

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Bibliographic Details
Main Authors: Han Feixiao, Hou Fengqi, Sun Xiaoping, Liu Zhixia, He Yonggang, Wang Kaixuan
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:MATEC Web of Conferences
Subjects:
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12035.pdf
Description
Summary:In this paper, the microstructure evolution and ultrasonic velocity variation of Ti6Al4V Ti-alloy bars under different conventional forging deformation degrees and triple heat treatment were investigated, it was found that the the orientation of microstructure is the main factor influencing the ultrasonic velocity. Meanwhile, taking the ultrasonic velocity as target, the ultrasonic velocity variation under given conventional forging process combined with different triple heat treatment conditions (heating temperatures, holding time) were revealed, it was found that the α-β phase ratio, the volume fraction and morphology of equiaxed αp and lamellar αs are also influencing the ultrasonic velocity.
ISSN:2261-236X