NONDESTRUCTIVE METHOD OF DETERMINING THE DUCTILE-BRITTLE TEMPERATURE FOR STRUCTURAL METALS

摘要

The nondestructive method of determining brittle temperature by analysis of' temperature dependences of' the elastic modulus and linear thermal expansion is described. The performance of this method is confirmed by tests of a molybdenum-carbon alloy in brittle and ductile states as well as of 50S2 and 80S steels in a ductile state at room temperature.