冷間圧延鋼のシャルピー衝撃特性と磁化特性の相関(計測・高周波デバイス)

概要

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A Charpy impact test and magnetic hysteresis measurement were performed on Fe-0.15wt%C steels with different cold-rolling ratios. As the cold-rolling ratio was increased, the ductile-brittle transition temperature (DBTT) and coercive field increased simultaneously. This correlation originated from an increase in the dislocation density induced by plastic deformation. This study shows the possibility of applying magnetic methods to pressure vessel surveillance at nuclear power plants.
社団法人日本磁気学会の論文
2004-03-01