Temperature dependence of the TRIP effect in a metastable austenitic stainless steel

The effect of test temperature in the range 20 – 400°C on mechanical properties under quasi-static tension and phase composition in metastable austenite-martensite TRIP steel in the form of a sheet of 0.3 mm thickness is investigated. Here strength and ductility increases are caused by austenite to martensite phase transformation. As supplied, the steel contained 65 % martensite and 35 % austenite. Due to tensile testing at room temperature, the...