Modeling the microstructure–mechanical property relationship for a 12Cr–2W–V–Mo–Ni power plant steel

For a 12Cr–2W–V–Mo–Ni power plant steel, the microstructure was characterized and the 0.2% proof strength was quantitatively related to its microstructure and chemical composition. The microstructural features including martensite lath width, carbide size and dislocation density were measured from transmission electron microscopy and the equilibrium concentrations of alloying elements dissolved in the matrix after tempering were calculated using...