|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||N-29: Microstructural Evolution of Ti-Mo and Ti-Mo-Fe Alloys during Continuous Heating and Aging Heat Treatments
||Mariana Mello, Camilo Salvador, Kaio Campo, Rubens Caram
|On-Site Speaker (Planned)
The β metastable Ti alloys have been extensively used in several industries, as they are able to achieve unique properties, such as improved specific strength, low elastic modulus and high corrosion resistance. In Ti alloys, Mo is an outstanding β-stabilizer element present in many commercial alloys, like the Beta21S and Ti-5553. In order to optimize the Ti-Mo based alloys, it is necessary to understand the relationship between heat treatment conditions and the resulting microstructure. Nucleation of α phase assisted by ω phase is the most traditional mechanism occurring in these alloys. In this study, the addition of Fe to the Ti-13Mo alloy was investigated along with the effect of various heating rates to reach the aging temperature in the α phase precipitation. It was noted that the high diffusivity rate of the Fe atoms in Ti has a direct influence on the alloy’s final microstructure, leading to refined α precipitates.
||Planned: Supplemental Proceedings volume