Strain aging and the Bauschinger effect in low-carbon pipe steel

Abstract

Strain aging and the Bauschinger effect in low-carbon ferrite–pearlite and ferrite–bainite pipe steel are studied. Steel with ferrite–bainite structure is more susceptible to strain aging and the Bauschinger effect. After alternating loading, strain aging develops, with increase in the yield point. After alternating loading of already aged steel, the Bauschinger effect appears; it is comparable with the effect in unaged steel.