LOW TEMPERATURE STRENGTH AND TOUGHNESS OF THERMOMECHANICALLY TREATED AND EB WELDED Fe-13%Ni-3%Mo-Ti ALLOYS.

Abstract

The strength and toughness of b. c. c. iron alloys can be improved by controlling their microstructure. Here, the alloys were subjected to thermomechanical treatment to improve their strength and toughness at cryogenic temperatures. Instead of being subjected to a quenching process, they were rolled at lower temperatures within the austenitic region. The processed materials were tested to evaluate the mechanical properties at lower temperatures.