OXIDATION RESISTANCE OF LOW-TEMPERATURE PACK ALUMINIZING COATINGS ON NI-BASE SUPERALLOY.

Autor: BIFEI YUAN, LONGWEN YU, GUIWU LU
Předmět:
Zdroj: International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics; 6/30/2010 Part 2 of, Vol. 24 Issue 15/16, p3185-3189, 5p, 1 Diagram, 3 Graphs
Abstrakt: A nickel-base superalloy has been used to deposit the aluminide coating by low-temperature pack cementation process. The high temperature oxidation tests on aluminized alloys and the uncoated specimens are carried out at 1000°C for 10h. It is observed that a dense and protective Al2O3 surface layer is produced on the aluminized alloy, and the aluminizing process has greatly enhanced the high temperature oxidation resistance of the Ni-base superalloy at 1000°C. As a contrast, the uncoated specimen begins to be failure when treated only for 6h at the same temperature. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index