High-Temperature Oxidation Behavior of Ti6242S Ti-based Alloy - Archive ouverte HAL Access content directly
Journal Articles Oxidation of Metals Year : 2021

High-Temperature Oxidation Behavior of Ti6242S Ti-based Alloy


The aircraft industry is always looking for improved efficiency through higher in-service engine temperatures and lighter structures. Titanium-based alloys are good candidates for such applications because of their high specific strength. However, when exposed to high-temperature oxidizing environments, a large amount of dissolved oxygen can be found in such alloys beneath the growing oxide scale, possibly leading to embrittlement. Consequently, evaluating the oxidation resistance of these alloys is essential. With this aim, long-term oxidation tests were carried out on Ti6242S alloy between 500 and 650 °C to study the effect of temperature, surface preparation and microstructure on oxide scale and oxygen dissolution. While increasing the temperature from 560 to 625 °C led to accelerated oxidation kinetics, surface preparation had no noticeable effect on mass variations and oxygen diffusion profiles. Regarding microstructure, when comparing Ti6242S samples having similar α-phase fraction but very different microstructures (fineness and morphology), there wasn’t any significant effect found on mass change and oxygen diffusion after 1 kh at 650 °C.


Fichier principal
Vignette du fichier
VandePut_28475.pdf (1.45 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03426063 , version 1 (15-11-2021)



Aurélie Vande Put, Charlotte Dupressoire, Carole Thouron, Philippe Emile, Raphaëlle Peraldi, et al.. High-Temperature Oxidation Behavior of Ti6242S Ti-based Alloy. Oxidation of Metals, 2021, 96 (3-4), pp.373-384. ⟨10.1007/s11085-021-10073-4⟩. ⟨hal-03426063⟩
25 View
17 Download



Gmail Facebook Twitter LinkedIn More