PLASTIC DEFORMATION AND FRACTURE BEHAVIOR OF GALVANNEALED COATING UNDER COMPRESSIVE STRESS CIRCUMSTANCE

摘要

Using galvannealed steel rolled in various reductions and temperatures, plastic deformation and fracture behavior in galvannealed coating layer was evaluated by scanning electron microscopy, X-ray diffraction and nanoindentation test. It was shown that plastic deformation certainly takes place in the coating layer under compressiye stress circumstance.