Originally Posted by
woodway
Well, kinda. Airplanes are made up of many materials. A 787 is 50% composites, 20% aluminum and 15% titanium. You can bet that Boeing would not be using titanium metal on that airplane is there were any concerns about the metal becoming brittle with age.
Not to mention the titanium is used in the highest stress area of the planes, the jet-engine turbine-fan blades!!!