| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1578040 | Materials Science and Engineering: A | 2011 | 5 Pages |
The low cycle fatigue behaviour of titanium alloy IMI 834 was comparatively studied in bare condition and with titanium aluminide coating, at 600 °C in air, for compressor disc of aero engines. At higher values of total strain amplitudes (Δɛt/2), coated alloy has longer fatigue life as compared to the bare alloy which appears to be due to load shifting to the coat, but at lower values of Δɛt/2, coating seems to have no effect on fatigue life. Coating adheres well to the substrate and offers resistance to cyclic plastic deformation and hence is beneficial.
► LCF behaviour of IMI 834 alloy was studied in bare condition and with Al2Ti coating, at 600 °C in air. ► At higher values of Δɛt/2, coated alloy has longer fatigue life as compared to the bare alloy. ► The above phenomenon appears to be due to load shifting to the coat. ► At lower values of Δɛt/2, coating seems to have no effect on fatigue life. ► Coating adheres well and offers resistance to cyclic plastic deformation and hence is beneficial.
