Influence of plastic compression on the magnetic behaviour of a pipeline steel

Sensitivity of magnetic behaviour to plastic deformations is only documented in literature for uniaxial tensile testing and few models claim to take into account the plastic deformation sign. We present in this paper some new results showing the influence of a plastic compression on the magnetic behaviour of a pipeline steel and highlighting strong differences between tension and compression for a same deformation amplitude. Results are interpreted in term of kinematic hardening and magneto-elastic effect.