The Evolution of Microstructure of Ti-6Al-4V Alloy during Water Cooling
- DOI
- 10.2991/icmsa-15.2015.166How to use a DOI?
- Keywords
- Ti-6Al-4V Alloy, Solution Treating, Water Cooling Temperature, Microstructure.
- Abstract
In this paper, Ti-6Al-4V alloy was water cooled from three different temperatures after solution treating. The microstructure of the specimens after thermomechanical treatment testing was observed by light optical microscopy (LOM) and scanning electron microscopy (SEM), respectively. The hardness of specimens was measured for each heat-treated condition. The evolution of microstructure of Ti-6Al-4V alloy during water cooling was investigated. The results showed that the hardness of the specimen increases with increasing water cooling temperature. Grain boundary provides nucleation sites when Ti-6Al-4 alloy was water cooled from 800 after solution anneal followed by cooling at a cooling rate of 5 /min. Higher water cooling temperature tends to promote the more homogeneous structures, whereas lower water cooling temperature result in less homogeneous alpha plates. Therefore, alpha phase refines with increasing water cooling temperature. The coarsest platelet alpha formed at water cooling temperature of 600 , this is because enough time is allowed for grain growth of alpha plates. Water cooling temperature after solution treatment affects the variety of the hardnesses and the evolution of microstructure for Ti-6Al-4V alloy. The highest hardness value (HV5=243) were obtained when the specimens were water cooled at 800 , this is attributed to finer platelet alpha and homogeneous structures.
- 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/).
Cite this article
TY - CONF AU - Jiu-Zhou Li AU - Huan-Huan Yu AU - Zhuang Li AU - Shuai Wang AU - Tao Yu AU - Zhao-Hua Li PY - 2014/06 DA - 2014/06 TI - The Evolution of Microstructure of Ti-6Al-4V Alloy during Water Cooling BT - Proceedings of the 2015 International Conference on Material Science and Applications PB - Atlantis Press SP - 897 EP - 901 SN - 2352-541X UR - https://doi.org/10.2991/icmsa-15.2015.166 DO - 10.2991/icmsa-15.2015.166 ID - Li2014/06 ER -