A new magnetic method for stress monitoring in steels

Abstract

Technology developments in analytic techniques as well as in data acquisition and management are already revolutionizing the ways that steel industry assets are managed. Their adoption in several fields of steel operations promises to a competitive advantage and sustainability to the steel industry. Real-time monitoring of steel production lines as well as steel structures using non destructive inspection is such a field. In this paper we present a sensor developed in our laboratory which when used in the non-destructive evaluation procedure also described in this work, it offers real-time monitoring of the structural integrity of magnetic steels, going beyond the state of the art by allowing for the correlation of macroscopic magnetic and magnetoelastic parameters to the total of the hydraulic and residual stresses as a function of position.