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Journal of Materials Engineering and Performance
Published in: Journal of Materials Engineering and Performance 2/2022

05-10-2021

Effects of Solution Temperature and Aging Time on the Microstructure and Mechanical Properties of TG6 Titanium Alloy

Authors: Renhai Yu, Qiong Chen, Pengcheng Wang, Di Zhang, Jinghui Li, Mingya Zhang

Published in: Journal of Materials Engineering and Performance | Issue 2/2022

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Abstract

This paper studies the effects of solution and aging treatment on the microstructure and mechanical properties of TG6 titanium alloy systematically. The cooling methods of solution and aging are water cooling (WC) and air cooling (AC), respectively. Based on the metallographic, EBSD, and SEM analysis, it can be concluded that the solution temperature and aging time are pivotal to the microstructure and mechanical properties of TG6 titanium alloy. First, the content of the primary α phase (αp) gradually decreases as the solution temperature increases. Meanwhile, the secondary a phase (αs) precipitates from the β phase during the subsequent cooling process. Additionally, the aging time mainly affects the morphology of the αs phase. Second, the microstructure performs a better orientation during the heat treatment process. The mechanical hardness gradually increases with the solution temperature while the aging time has little effect on it. Both the tensile strength and plasticity decrease gradually as the solution temperature increases. 48 h is the best aging time. This study's relatively optimal heat treatment regime combines a solution temperature of 850 °C and an aging time of 48 h.
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Metadata
Title
Effects of Solution Temperature and Aging Time on the Microstructure and Mechanical Properties of TG6 Titanium Alloy
Authors
Renhai Yu
Qiong Chen
Pengcheng Wang
Di Zhang
Jinghui Li
Mingya Zhang
Publication date
05-10-2021
Publisher
Springer US
Published in
Journal of Materials Engineering and Performance / Issue 2/2022
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-021-06285-z

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