DEVELOPMENT OF HIGH-STRENGTH STEELS BY WORKING OF METASTABLE AUSTENITE

摘要

The greater the deformation of the metastable austenite, the better the yield and tensile strength properties. Tensile strengths of 400,000 psi have been obtained with deformations on rolling of the order of 90 per cent reduction in cross section.nFor the aircraft and missiles industries, the steels containing 0.30 to 0.40 carbon seem to be the most suitable. The effect of particular alloying elements on the behavior of the deformed metastable austenite is not known. The tempering sequence depends on the steel used.