A METALLURGICAL INVESTIGATION OF LARGE FORGED DISCS OF LOW-CARBON N-155 ALLOY

摘要

This report in one of a series on a cooperative research investigation undertaken to ascertain the properties of the better wrought heat-resisting alloys in the form of large discs required for gas turbine rotors.nThe properties of large discs of Low-Carbon N-155 alloy in both the as-forged and water-quenched and aged conditions have been determined by means of stress-rupture and creep tests for time periods up to about 2000 hours at 1200°, 1350°, and 1500℉. Short-time tensile test, impact test, and time-total deformation characteristics are included.