Question

A magnesium alloy containing 3% rare earth metal exhibits which of the following characteristics?

(a) Creep resistance up to 250^oC

(b) Good founding properties

(c) Die-casting alloy

(d) Good overall properties

The question was asked in examination.

This interesting question is from Magnesium and its Alloys topic in division Non Ferrous Materials of Engineering Material & Metallurgy

Answer 1

Right choice is (a) Creep resistance up to 250^oC

To elaborate: A magnesium alloy containing rare earth metal (3%) is a type of cast alloy. It also contains 2.5% of zinc and 0.6% zirconium. It has a creep resistance up to 250^oC. It is also pressure tight, weldable, and has excellent castability.