Magnetic field effects on the corrosion behavior of magnetocaloric alloys LaFe13.9Si1.4 under paramagnetic states

The effect of magnetic fields on the corrosion mechanism of LaFe _13.9Si _1.4 alloys, which were under paramagnetic states was investigated via immersion tests under controlled magnetic field conditions, and numerous analytical techniques. The results indicate that the presence of magnetic fields have a significant effect on the corrosion rate, morphology, and products, which may be due to the magnetohydrodynamics. Immersion in magnetic fields of 1 T for 72 h resulted in a significant reduction of the corrosion rate. The corrosion morphology showed cluster-like, specific striation, and mesh-like patterns for zero and 1 T (parallel and perpendicular) magnetic fields, respectively.