High temperature oxidation resistance and microstructure of laser-shock peened Ti-Beta-21S
- Resource Type
- Authors
- Patrice Peyre; Virgil Optasanu; Tony Montesin; Pascal Berger; Cyril Gorny; L. Lavisse; A. Kanjer; M.C. Marco de Lucas
- Source
- Surface and Coatings Technology
Surface and Coatings Technology, Elsevier, 2020, 403, pp.126368. ⟨10.1016/j.surfcoat.2020.126368⟩
Surface and Coatings Technology, 2020, 403, pp.126368. ⟨10.1016/j.surfcoat.2020.126368⟩
- Subject
- Solid-state chemistry
Matériaux [Sciences de l'ingénieur]
Materials science
Diffusion
Alloy
Kinetics
chemistry.chemical_element
02 engineering and technology
engineering.material
7. Clean energy
Oxygen
Materials Chemistry
Composite material
Oxygen diffusion
High temperature oxidation
020502 materials
oxidation kinetics
technology, industry, and agriculture
Titanium alloy
Peening
Metastable beta-titanium
Surfaces and Interfaces
General Chemistry
[CHIM.MATE]Chemical Sciences/Material chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Microstructure
equipment and supplies
Surfaces, Coatings and Films
Mechanical surface treatments
0205 materials engineering
chemistry
13. Climate action
engineering
0210 nano-technology
- Language
- English
- ISSN
- 0257-8972
1879-3347
International audience; 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 $\beta$ titanium alloy specifically designed for high temperature applications up to 593 °C. We report the effect of a surface treatment by laser-shock peening (LSP) on the high temperature behavior of Ti-Beta-21S in order to increase further its maximum service temperature. The oxidation kinetics at 700 °C for duration up to 3000 h showed that the LSP treatment increases the oxidation resistance of Ti-Beta-21S. The effects of the LSP treatment on the alloy microstructure, its evolution at high temperature and the diffusion of light atmospheric elements (oxygen and nitrogen) are also reported.