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With the addition of which element, does zinc create resistance to creep?

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in Engineering Material & Metallurgy by (773k points)
With the addition of which element, does zinc create resistance to creep?

(a) Pb

(b) Cd

(c) Mg

(d) Cu

The question was posed to me in final exam.

I'd like to ask this question from Aluminium and its Alloys, Zinc and its Alloys in portion Non Ferrous Materials of Engineering Material & Metallurgy

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Correct answer is (c) Mg

For explanation: When magnesium is added to copper, it increases its resistance to creep. Lead affects intercrystalline corrosion, while cadmium improves hardening effect. Copper makes the Cu-Zu alloys more ductile.

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