A quick question for the guys in aerospace and materials science. A long ti
me ago, I remember hearing about an aircraft alloy (I think it was aluminiu
m based) which followed a hardness curve over about 40 years during normal
use (i.e., at normal aircraft operating temperatures). This meant that it w
as strongest after about 20 years, and then became weaker with age. Can any
one tell me the name of this alloy?
2 years ago