Effect of plastic straining on the remanent magnetization of ferritic-pearlitic steel: Experimental and modeling aspects

The remanent magnetization of a carbon steel which has been plastically deformed by uniaxial tensile test at different strain levels is measured along the tensile direction during unloading and at the unloaded state. It is shown that plastic strain considerably reduces the remanent magnetization but that remanence is recovered under applied stress, leading to the conclusion that behavior of the deformed material seems to be able to be obtained by a simple translation in the stress space of the behavior at the undeformed state. This result is in accordance with the results of a modeling approach considering the deformed material as a two phase material submitted to a strong internal stress level.