Abstract
The effect of shot-peening on the surface roughness of NiCoCrAlY coating on Ni3Al base alloy IC6 was investigated. The results indicated that shot-peening could obviously decrease the roughness of NiCoCrAlY coating to smaller than 1.6 μm, and also increased the density of the coating, as shot-peening was carried out after the vacuum diffusion heat-treatment of the coating, the pressure was 0.4 MPa and lasting time was 4 min. Moreover, the residual compressive stress did not result in the recrystallization of IC6 alloy. Therefore, it was feasible to decreasing the surface roughness of NiCoCrAlY coating by shot-peening.
| Original language | English |
|---|---|
| Pages (from-to) | 289-290 |
| Number of pages | 2 |
| Journal | Journal of Aeronautical Materials |
| Volume | 26 |
| Issue number | 3 |
| State | Published - Jun 2006 |
Keywords
- IC6 alloy
- NiCoCrAlY coating
- Shot-peening
- Surface roughness
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