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OALib Journal期刊
ISSN: 2333-9721
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kcl--zncl2沉积盐导致fe--15cr--xal合金表面氧化铬膜的退化
Keywords: 材料失效与保护,fe--cr--al,kcl--zncl2,热腐蚀
Abstract:
？研究了三种fe--15cr--xal(x=0,5,10,原子分数)合金在600℃于zncl2--kcl盐膜下的腐蚀行为.与氧化相比,所有合金在盐膜下均发生加速腐蚀,生成了疏松多孔的腐蚀产物膜,且发生内腐蚀.合金的腐蚀速率随着铝含量的增加而降低.铝的作用主要是由于al2o3在腐蚀产物内层富集,充当阻挡层有效地阻碍了反应介质在膜中的传递.
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