Consider the phase diagram for the Cr–V alloy. At 1800℃, starting with pure chromium, what phase changes will occur as the percentage of vanadium is gradually increased until you reach pure vanadium?

• A. solid – liquid
• B. liquid – solid
• C. Solid – liquid – solid
• D. liquid – solid – liquid
• E. always solid
• F. always liquid

Answer: (C)