中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 3 No. 3 September 1993 |
INFLUENCE OF DISPERSIVE Y2O3 PARTICLES ALLOYING BY LASER IRRADIATION ON OXIDATION BEHAVIOUR OF AN SUPERALLOY
（Northeastern University; Shenyang 110006; China）
Abstract:The homogeneous dispersive Y2O3 particles were melt-doped on the surface of a superalloy by laser alloying and the effect of Y2O3 on the oxidation resistance of the alloy were investigated. The results showed that compact α-Al2O3 oxide scales formed continuously on the alloy surface and the internal oxidation was eliminated and oxidation rate decreased. Therefore, the oxidation resistanee of the alloy was improved.
Key words: superalloy Y2O3 particle laser surface alloying oxidation resistance
