Effect of Vanadium Content on Microstructure and Properties of Steel
By metallographic and TEM,the microstructure and properties of three bases containing different V content,were studied.The analysis results show that it can better achieve "regulating austenitic" to refine the ferrite grain size by properly increasing V content in reinforcement.The tensile strength and yield strength of the reinforcement can gradually increase.TEM and electron diffraction observation show that V carbonitride can most precipitate in ferrite,and the morphology of precipitated phase is dish flake.