Effect of Yttrium Additions on the Tensile Properties and Hardness of an Iron-Nickel-Chromium Alloy

摘要

Results of the research work show that the addition of 0.1% yttrium does not significantly change the mechanical properties of the AL1 alloy with temperature (even though the yttrium-doped samples did show a slight increase in yield stress and hardness for tests above 700 exp 0 C); the room temperature strength of the undoped AL1 alloy increases upon annealing at temperatures above 600 exp 0 C; and the room temperature uniform and fracture strains of the undoped AL1 alloy decrease upon annealing at temperatures above 600 exp 0 C.