Question

Which of the following characteristics is mainly considered for the solidification of castings?

(a) Appearance

(b) Crystal structure

(c) Moulding capacity

(d) Surface finish

This question was posed to me by my college professor while I was bunking the class.

My question comes from Mechanism of Solidification topic in section Cooling and Solidification of Casting-Forming-Welding I

Answer 1

Correct option is (b) Crystal structure

To elaborate: A clear understanding of the mechanism of solidification and cooling of molten metal and alloys is very essential for the production of successful castings. During solidification, crystal structure of the casting material is mainly considered along with its composition at different parts of the casting.