Copper alloys are mostly hot treated? A. True B. False I had

copper-alloys-are-mostly-hot-treated-a-true-b-false-i-had

Copper alloys are mostly hot treated?

A. True

B. False

I had been asked this question in an internship interview.

Origin of the question is Copper Alloys in portion Foundry Introduction & Materials of Casting-Forming-Welding II

Right choice is B. False

Easy explanation: For properties of copper to be used, but with more strength, this copper needs to be mixed with certain material, which will provide it the required strength. Cadmium, silver and aluminium oxide are few of those materials which will aid in increasing its strength. This process of increasing strength is done by treating the alloy through cold working.