79Often, the properties of multiphase alloys may be approximated by the relationship E (alloy) = EV +

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79Often, the properties of multiphase alloys may be approximated by the relationship
E (alloy) = EαVα + EβVβ (9.24)
Where E represents a specific property (modulus of elasticity, hardness, etc.), and V is the volume fraction. The subscripts α and β denote the existing phases or micro constituents. Use this relationship to determine the approximate Brinell hardness of a 99.75 wt% Fe-0.25 wt% C alloy. Assume Brinell hardnesses of 80 and 280 for ferrite and pearlite, respectively, and that volume fractions may be approximated by mass fractions.
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Materials Science and Engineering An Introduction

ISBN: 978-1118324578

9th edition

Authors: William D. Callister Jr., David G. Rethwisch

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