Essentials Of Materials Science And Engineering
Essentials Of Materials Science And Engineering
4th Edition
ISBN: 9781337670845
Author: ASKELAND
Publisher: Cengage
Question
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Chapter 13, Problem 13.35P
Interpretation Introduction

(a)

Interpretation:

The cooling rate of 4320 steel of hardness HRC35 needs to be stated.

Concept Introduction:

Material hardness is the property of a metal due to which material resist the plastic reformation. Plastic reformation means material reformation which undergoes non-reversible change. Hardness is the property of any material due to which it resists to bend, scratch or any other deformation. Hardness is not constant or fixed for all material, but it depends upon strength and plasticity of metal, material hardness is expressed in terms of hardness number.

Interpretation Introduction

(b)

Interpretation:

Microstructure and hardness if the part is made of 1080 steel needs to be determined.

Concept Introduction:

Material hardness is the property of a metal due to which material resist the plastic reformation. Plastic reformation means material reformation which undergoes non-reversible change. Hardness is the property of any material due to which it resists to bend, scratch or any other deformation. Hardness is not constant or fixed for all material, but it depends upon strength and plasticity of metal, material hardness is expressed in terms of hardness number.

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