Chapter 9, Problem 9.84P

Interpretation Introduction

Interpretation:

The percent volume change in cast iron during solidification needs to be determined. Whether expansion or contraction takes place needs to be determined.

Concept introduction:

Solidification is the process of forming crystals structure from the molten metal.

Shrinkage is a type of defect occurs in cast product during solidification.

Shrinkage affects the dimensions of casting.

Percent change in volume is calculated by taking the ratio of the initial volume of casting and final volume of casting after solidification.

% volume change = $\frac{{\text{V}}_{\text{initial}}{\text{-V}}_{\text{final}}}{{\text{V}}_{\text{initial}}}\times 100\%$