Title of article
1050 °C isothermal oxidation behavior of detonation gun sprayed NiCrAlY coating
Author/Authors
Zhang، نويسنده , , Yujuan and Sun، نويسنده , , Xiaofeng and Guan، نويسنده , , Heng-Rong and Hu، نويسنده , , Zhuang-Qi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
4
From page
302
To page
305
Abstract
NiCrAlY coating was deposited on a single crystal Ni-base superalloy by detonation gun spraying. By means of XRD, SEM and EDS, isothermal oxidation behavior of the coatings at 1050 °C were studied. The results showed that detonation gun sprayed NiCrAlY coatings held a favorable oxidation resistance. Their oxidation kinetics at 1050 °C obeyed the parabolic law. α-Al2O3 scale was formed on the coating surface and kept almost intact after oxidation for 300 h. Internal oxidation led to the formation of Al2O3 at the coating/substrate interface, and needlelike (Al, N) compounds appeared in the undersurface area of the substrate.
Keywords
Isothermal oxidation , NiCrAlY coating , Detonation gun spraying
Journal title
Surface and Coatings Technology
Serial Year
2002
Journal title
Surface and Coatings Technology
Record number
1804705
Link To Document