Microstructure and Mechanical Properties of Low Carbon Bainite Steel Cooling in Air
The microstructure and mechanical properties of steel 22Mn2SiVBS after austenizating at 1280 ℃ were studied.The results show that the fine grain granular bainite and little remain austenite can be obtained when 22Mn2SiVBS steel is cooled in air.The strength and hardness is higher,but the toughness is lower after heat treatment.