Relationship between the microstructure and the heat treatment and creep behavior of Fe–33Ni–19Cr alloy

In the present study, the relationship between heat treatment, grain size, and the creep rupture properties of Fe–33Ni–19Cr alloy was investigated. The microstructure analysis showed that Fe–33Ni–19Cr alloy consists of the austenite phase matrix and a small number of precipitates such as titanium nitride and titanium carbides. Fe–33Ni–19Cr alloy shows an increase in steady‐state creep rate with increased grain size from 94 to 381 μm, due to the...