<報文>析出強化型 Ni 基超合金におけるγ'相の組成分析

概要

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A potentiostatic method was applied to the separation of gamma prime phase by anodic dissolution of the matrix of the nickel-base superalloys, which were prepared by hot isostatic pressing and mechanical alloying processes, in the solution of ammonium sulfide-citric acid and in the methyl alcohol solution of nitric-perchloric acid. The chemical analysis was made of the extracted gamma prime phase. The compositions of the gamma prime phases were determined without contamination of gamma phase in the methyl alcohol solution in the superalloys. The representative formulas were calculated for the separated gamma prime phases and the lattice parameters were determined. The atomic ratio of the concentration of aluminum to that of titanium in the gamma prime phase was approximately the same in the superalloys.nickelaluminumgamma prime phasesuperalloygamma phaseintermetallic compound
東北大学の論文
1991-12-27