Question

A 50 wt% ni–50 wt% cu alloy is slowly cooled from 1400°c to 1200°c:

Answer 1

This composition from Ni and Cu is called cupronickel.It is high in copper and silver in colour and highly resistant to corrosion, particularly seawater. Cooper nickel is used in the industry, in marine engineering . Melting point is 2254,73 F, which is 1234.85 Celsius. In this range of tempereature the cupronickel melts.