Abstract
The giant magnetstrictve materials (GMM) are expected in many applications such as power transducers, SAW devices, and sensor devices for under sea, a satellite orbit and outdoor. However, little discussion has been made from the view point of corrosion resistance of GMM. The anodic polarization behavior was measured in acidic, alkaline and neutral salt solutions for the samples of (Tb-Dy-Fe) thin films prepared by DC sputtering process.