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Effect of shot-peening on surface roughness of NiCoCrAlY coating on Ni3Al base alloy IC6

  • Beijing Institute of Aeronautical Materials
  • Xinyi Machinery Factory

Research output: Contribution to journal › Article › peer-review

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 languageEnglish
Pages (from-to)289-290
Number of pages2
JournalJournal of Aeronautical Materials
Volume26
Issue number3
StatePublished - Jun 2006

Keywords

  • IC6 alloy
  • NiCoCrAlY coating
  • Shot-peening
  • Surface roughness

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