Influence of Heat Treatment on Hot-rolled Sheet Forming of Ti–6Al–4V Alloy

DOI

10.2991/icmsa-15.2015.165How to use a DOI?

Keywords

Solution Heat Treatment, Aging, Ti–6Al–4V Alloy, Erichsen Value, Phase.

Abstract

Solution heat treatment and subsequent precipitation aging operations of Ti-6Al-4V alloy were conducted, and erichsen test was performed. Detailed microstructure was carefully observed by light optical microscopy (LOM). Influence of heat treatment on hot-rolled sheet forming of Ti-6Al-4V alloy was investigated. The results showed that the microstructure of Ti-6Al-4V alloy consists of two phases ( - ). The grain size of primary phase augmented and second- phase grew with increasing aging temperature. A relatively high aging temperature of 580 leads to sufficient coarsening of the microstructure. The hardness decreases with increasing aging temperature. However, erichsen value reaches the maximum value of 4.5mm for aging treatment at 580 . Erichsen value increases with increasing aging temperature, this is attributed to the fact that the change of phase from finely dispersed particles to coarsening. The cold-forming properties of Ti-6Al-4V alloy were improved by increasing aging temperature.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Huan-Huan Yu
AU  - Zhuang Li
AU  - Zu-Hua Bao
AU  - Shao-Pu Kang
PY  - 2014/06
DA  - 2014/06
TI  - Influence of Heat Treatment on Hot-rolled Sheet Forming of Ti–6Al–4V Alloy
BT  - Proceedings of the 2015 International Conference on Material Science and Applications
PB  - Atlantis Press
SP  - 892
EP  - 896
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.165
DO  - 10.2991/icmsa-15.2015.165
ID  - Yu2014/06
ER  -