TITANIUM ALLOYS

-Titanium and its alloys are light weight metal with very high strength.

-Titanium is as strong as steel, but 43% lighter; it is 60% heavier than aluminium, but twice as strong

-The pure material have a tensile strength of 50000 to 90000 psi

-Aluminium amounting from 3 to 7% is commonly used as an alloying element

-Their alloying element include molybdenum, tin, iron, chromium and vanadium

-Alloying and heat treating have made it possible to develop titanium products with more than 180000 psi tensile strength

-Used widely in the aerospace industry because of its:

o High strength

o Light weight

o Temperature resistance

o Corrosion resistance

-Hence, it is useful in the cooler section of gas turbines, engines, and for skin parts of aircraft which may be subjected to elevated temperatures damaging to aluminium alloys.

-Titanium can be sheared, drawn, pressed, machined and sawed

-Precaution: At high temperatures, titanium has high affinity for oxygen and nitrogen.