Effects of degrees of deformation and stress-relief temperatures on the mechanical properties and residual stresses of cold drawn mild steel rods

• Published in: Journal of materials processing technology Vol. 160; no. 2; pp. 112 - 118
• Main Authors: Alawode, A J, Adeyemi, M B
• Format: Journal Article
• Language: English
• Published: 30-03-2005
• ISSN: 0924-0136
• DOI: 10.1016/j.jmatprotec.2004.04.411VT

The effects of degrees of deformations, ranging from 5 to 30% reductions and stress-relief temperatures of 30-500 DGC on the mechanical properties and residual stresses of cold drawn mild steel rods were experimentally investigated and presented. Empirical equations, relating the mechanical properties to stress-relief temperatures and degrees of deformations of the drawn mild steel rods are given. Resilience, derived from the stress-strain curves for as-drawn and stress-relieved cold drawn mild steel rods of the same reduction, is found to be a possible alternative method for comparing residual stresses retained after stress-relieving process to the usual longitudinal slitting method now in use.