With increasing corrosion time the impact toughness of high Mn steel obviously decreased. The major mechanism was effect of the caustic embrittlementcracking.
随着热强碱腐蚀时间的延长，高锰钢的冲击韧度明显降低，碱脆开裂是造成高锰钢冲击韧度下降的主要原因。
2
With an increase of the chromium content in the cast steel, active dissolving corrosion increased, however, tendency of caustic embrittlementcracking decreased.
随着钢中含铬量的增加，试验材料的活性溶解腐蚀失重增大，但碱脆开裂的倾向减少。
3
The high Mn steel caustic embrittlementcracking was distinct in corrosion. With increasing corrosion time the impact toughness of high Mn steel obviously decreased.