Smart Stress Annihilation in Steels Using Residual Stress Distribution Monitoring and Localized Induction Heating

Abstract

The monitoring and control of residual stresses and microstructure are of paramount importance for the steel industry. Residual stress annihilation is needed during the entire lifetime of steels. In this paper, we presented a stress monitoring and annihilation method, based on a force sensor for stress monitoring and an induction heater for localized heat treatment and corresponding stress annihilation. The heat treatment results indicated an at least 90% reduction of localized stresses, allowing for the implementation of the method in steel production and manufacturing to improve steel quality and perform faultless steel production and manufacturing.

Keywords

• stress monitoring
• stress annihilation
• localized heat treatment
• faultless steel