亜鉛めっきによる高強度鋼の水素脆性と予亀裂の可視化

抄録

To clarify factors causing hydrogen embrittlement from zinc plating on high-strength steel, high-strength steel sheets with zinc plating were loaded within the elastic limit for assessment by three-point bending. They were then unloaded. Crack initiation sources leading to rupture were visualized for the loaded part. Thereby, pre-cracks became observable before rupture.