Improving the high temperature (HT) resistance of titanium alloys is currently a technological
challenge for extending their use in aerospace engines. Ti-Beta-21S is a metastable β …

Increasing the strength of aged metastable β titanium alloys through refinement of
intragranular α precipitates has been previously demonstrated using heterogeneous …

Oxygen in bcc (β) titanium is an interstitial element. Oxygen increases the temperature range
of stability of α and ω iso phases and stabilizes them by diffusion. On the other hand …

A correlation between the Nb/Mo contents in the β-21S alloy and the oxidation behavior at
high temperatures was investigated. Five alloys were oxidized pseudo-isothermally at 700 …

Isothermal oxidation tests of mechanically treated Ti-Beta-21S (TIMET, Ti–15Mo–3Nb–3Al–
2Si, ASTM Grade 21) were performed under dry air at 650, 700 and 750° C for 100 h and …

Oxygen atoms are dispersed in a Mg-9Al alloy (Mg-O-9Al alloy) with the decomposition of
TiO 2 nanoparticles in melt. During the solidification process, the oxygen atoms are …

Titanium and its alloys exhibit many desirable properties, such as a high strength-to-weight
ratio and excellent corrosion resistance, which result in their continued importance as …

Cette thèse vise à déterminer l'influence de deux traitements mécaniques, le grenaillage
SMAT effectué avec plusieurs types de billes (en WC, en alumine et en verre) et le choc …

The improvement of the high temperature oxidation resistance of titanium alloys is currently
a technological challenge. Mechanical surface treatments as shot-peening (SP) have shown …

This study presents the behavior of beta 21s titanium alloy coated with SiO 2 sol-gel after
cyclic oxidation carried out in air at 650 C. The SiO 2 coating decreased the oxygen …