COARSENING OF GRAIN BOUNDARY CARBIDES IN A NICKEL-BASED TERNARY ALLOY DURING CREEP

摘要

Stress enhanced coarsening of grain boundary carbides resulting from creep loading is analyzed. Grain boundary carbide distribution measurements from material before and after creep testing begins the Analysis. The extent of stress enhancement is determined by comparison of measurements from creep tested Material with those from stress-free aged material. These measurements are analyzed with respect to exist- Ing coarsening theories.