Chapter 12, Problem 12.107P

Interpretation Introduction

Interpretation:

The steps to quench and tempered eutectoid steel having tensile strength 125000 Psi needs to be explained.

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 which possess stiffness, resistance to bending, scratching or cutting. 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.