【摘要】 研究了块状金属玻璃(Fe1-x,Cox)76Mo4(P0.45C0.2B0.2S i0.15)20(76x=0、10和20)的化学腐蚀行为.利用电化学腐蚀实验的方法,考察了该Fe基块状金属玻璃在不同浓度的HC l溶液中的极化电位和极化电流,从所测得的电化学极化曲线分析了其电化腐蚀特征;并采用失重法测定了该金属玻璃在不同浓度的HC l溶液中的腐蚀速率,腐蚀率低于0.08 g.m-2.h-1.结果表明:所研究的Fe基块状金属玻璃合金系在HC l溶液中具有优异的耐蚀性;并且随着Co含量的增加,相应的金属玻璃的耐腐蚀性能也进一步提高.更多还原

【Abstract】 The corrosion behavior of(Fe1-x,Cox)76Mo4(P0.45C0.2B0.2Si0.15)20(76x=0,10 and 20) bulk metallic glasses was researched in this paper.The electric polarization curves of the bulk metallic glasses were measured in 1 mol/L and 2 mol/L HCl.From the electric polarization curves,features of corrosion behavior were analyzed.The weight loss experiments of bulk metallic glasses(Fe1x,Cox)76Mo4(P0.45C0.2B0.2Si0.15)20(76x=0,10 and 20) in different density HCl were also conducted.The corrosion rate is lower than 0.08 g·m-2·h-1.The results indicate that BMG system has high anti-corrosion properties.Furthermore,the corrosion resistance of bulk metallic glasses improves with the increase of Co content in the alloys.The weight loss experiments show that the corrosion rate of the bulk metallic glasses changes within the range of 10-3～10-2 A·cm-2.The corrosion rate decreases with the increase of Co content in the alloys.更多还原