DefinePK

Abstract

Static indentation and compression tests have been conducted at a common strain rate of 10-3s-1 on SS304 heated to 1273 K held there for 30 min and subsequently cooled in the atmosphere. In the present work an attempt was made in evaluating the Constraint Factor (CF) i.e., the ratio of Meyer Hardness to flow stress as a function of average strain perusing the Meyer hardness data points and flow stress data points at constant strain over a considerable strain range. An attempt was also made in converting Meyer hardness Vs average strain curve to a flow curve in uniaxial tensile/compression test by applying CF obtained from the literature. It has been observed that, Meyer hardness Vs average strain curve is matching with flow curve at a CF value of 3.06 for SS304. In addition to this, an effort is made in evaluating the important properties like strain hardening exponent and strength coefficient for SS304 from static indentation and compression tests.