|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||LL-68: Effect of Alloying Elements on the High Temperature Oxidation of Ti-Al-Fe Alloys
||Jiwon Park, Do-Heon Kim, Yong-Taek Hyun
|On-Site Speaker (Planned)
Recycling titanium scraps results in inevitable impurity pick-up such as oxygen, which greatly alters microstructure and surface quality of titanium slab. In this study the effect of alloying elements on the high temperature oxidation of Ti-Al-Fe alloys is investigated. Thermogravimetric techniques are used to observe mass changes during isothermal heat treatment in dry air from 600 °C to 1200 °C, in α, α + β, and β regions of titanium alloys. Plasma melted alloy buttons are heat treated and machined to strips, then oxidized for short term to examine initial oxidation and long term for overall kinetics and scale forming. Phase and microstructure changes due to oxidation are qualified using OM, XRD, and SEM-EDS.
||Planned: A print-only volume