微观结构的效果在 Ni55Nb20Ti10Zr8Co7 体积的腐蚀行为上变化形成眼镜的合金在 1 mol/L HCl 和 0.5 个 mol/L H2SO4 答案被调查。基于 Ni 的合金的不同微观结构被退火完成玻璃质的杆由铜模子扔准备了的体积。微观结构,谷物尺寸,谷物分发,和阶段作文被描绘。基于 Ni 的合金的电气化学的行为被静态的沉浸和阳极的 potentiodynamic 极化测试揭示。这被显示形成眼镜的合金与它的微观结构有关的基于 Ni 的体积的腐蚀行为,当充分使结晶的合金非结晶的状态比那些展出一个相对更低的腐蚀电阻时。
The effects of microstructure change on the corrosion behaviours of Ni55Nb20Ti10Zr8Co7 bulk glass-forming alloy were investigated in 1 mol/L HCl and 0.5 mol/L H2SO4 solutions. Different microstructures of the Ni-based alloy were achieved by annealing the bulk glassy rod prepared by copper mould casting. The microstructure, grain size, grain distribution, and phase composition were characterized. Electrochemical behaviours of the Ni-based alloy were revealed by static immersion and anodic potentiodynamic polarization tests. It is indicated that the corrosion behaviours of the Ni-based bulk glass-forming alloy are related to its microstructures, while the fully crystallized alloy exhibits a relatively lower corrosion resistance than those of the amorphous states.