Effect of microstructural changes on nanomechanical properties in P9 Ferritic/Martensitic steel

摘要

9Cr-1Mo Ferritic/Martensitic (P9) steel was subjected to different heat treatments namely austenitisation followed by water quenching and air cooling and subsequently tempering. The changes in microstructures are studied using microscopy techniques. Hardness, elastic modulus and yield stress measurements through instrumented hardness testing have been carried out to evaluate the mechanical properties and correlated to microstructural changes.