Influence of aging treatment on microstructure and mechanical properties of a new high strength TB17 titanium alloy
- 10.2991/ameii-16.2016.76How to use a DOI?
- TB17 titanium alloy,High strength,Aging,Precipitation
Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM) and X-Ray Diffraction(XRD)were employed to investigate the influence of heat treatment conditions on microstructure and mechanical properties of a new high strength TB17 titanium alloy at aging temperature from 530øC to 620øC. The results showed that the aging temperature had a significant influence on microstructures and mechanical properties of the alloy. At aging temperature of 530 øC, the existence of lamellar secondary phase with a size of 40nm resulted in high tensile strength above 1500MPa and acceptable elongation of 6%. The secondary phases had a great effect on the mechanical properties of TB17 titanium alloy, i.e. the fine acicular secondary phase contributed to quasi-cleavage fracture, while the coarse phases lead to the ductile fracture. Finer secondary phase could provide more / phase interface, which could act as the site of micro-crack nucleation and hinder the dislocation movement inside the titanium alloy, thus, a higher strength could be obtained for the TB17 titanium alloy.
- © 2016, 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 - Zhe Wang AU - Xinnan Wang AU - Guoqiang Shang AU - Liwei Zhu AU - Jing Li AU - Yue Fei AU - Shuai Tian AU - Zhishou Zhu PY - 2016/04 DA - 2016/04 TI - Influence of aging treatment on microstructure and mechanical properties of a new high strength TB17 titanium alloy BT - Proceedings of the 2nd International Conference on Advances in Mechanical Engineering and Industrial Informatics (AMEII 2016) PB - Atlantis Press SP - 373 EP - 379 SN - 2352-5401 UR - https://doi.org/10.2991/ameii-16.2016.76 DO - 10.2991/ameii-16.2016.76 ID - Wang2016/04 ER -