Microstructural stability and short-term creep properties of 12Cr–W–Mo–Co steel

In this work, the evolution of microstructure during the aging process and short-term creep deformation behavior for 12Cr–W–Mo–Co (12Cr–CC) steel was investigated at 650 °C. The strengthening effects of microstructure were studied based on the crystal structure of precipitation and their coarsening characterization. It is shown that M23C6 and MX types of secondary phases and martensitic laths were coarsened with the proceeding of aging. Fe2(W,...