(a) For a given material, would you expect the surface energy to be greater than, the same...

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(a) For a given material, would you expect the surface energy to be greater than, the same as, or less than the grain boundary energy? Why?
(b) The grain boundary energy of a small-angle grain boundary is less than for a high-angle one. Why is this so?
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Materials Science and Engineering An Introduction

ISBN: 978-0470419977

8th edition

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

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