Materials Science and Engineering: An Introduction

Published by Wiley
ISBN 10: 1118324579
ISBN 13: 978-1-11832-457-8

Chapter 11 - Applications and Processing of Metal Alloys - Questions and Problems - Page 464: 11.26

Answer

A decrease of austenite grain size will decrease the hardenability. Pearlite normally nucleates at grain boundaries and the smaller the grain size, the greater the grain boundary area. Consequently, the easier it is for pearlite to form.

Work Step by Step

A decrease of austenite grain size will decrease the hardenability. Pearlite normally nucleates at grain boundaries and the smaller the grain size, the greater the grain boundary area. Consequently, the easier it is for pearlite to form.
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