?precipitate morphology and its dissolution/precipitation kinetics in a special oxiddispersion-strengthened Ni-base superalloy have been investigated. Using an advanced computer programmebased on regression analysis, ...?precipitate morphology and its dissolution/precipitation kinetics in a special oxiddispersion-strengthened Ni-base superalloy have been investigated. Using an advanced computer programmebased on regression analysis, the volume fraction of γ'and its composition as a function of temperaturewere calculated. The lattice constants of both γ'precipitates nd γ matrix have been compared and theresultant lauice misfit computed. Finally, the concentration of AI remaining in γ matrix was determined.The results show generally good agreements with available data for ordinary superalloys. Cornparison ismade against experimental study by using differential scanning calorimetry.展开更多
文摘?precipitate morphology and its dissolution/precipitation kinetics in a special oxiddispersion-strengthened Ni-base superalloy have been investigated. Using an advanced computer programmebased on regression analysis, the volume fraction of γ'and its composition as a function of temperaturewere calculated. The lattice constants of both γ'precipitates nd γ matrix have been compared and theresultant lauice misfit computed. Finally, the concentration of AI remaining in γ matrix was determined.The results show generally good agreements with available data for ordinary superalloys. Cornparison ismade against experimental study by using differential scanning calorimetry.
