Composition and Mechanical Property of DD6 Superalloy Revert

Abstract

DD6 superalloy revert ingot was smelt in an industrialized vacuum induction furnace,Inclusions quantity was tested by electron beam buttons. Purification effect, compositions, mechanical property and cast-ability of purified revert and normal virgin alloy was studied. The results show that the quantity of the inclusions of revert material was slightly higher than one of the normal virgin,and rupture life under 980°C/250MPa and 1100°C/130MPa was slightly higher, and the similar effect was also shown for the compositions and the tensile properties under the temperatures of 760°C and 980°C, as well as cast-ability.