CAJ | 학술논문

用电化学极化曲线研究锆基非晶合金Zr53.5Cu26.5Ni5Al12Ag3在25℃和60℃温度下,在0.01 mol/L和0.1 mol/L的NaOH溶液中腐蚀100 h的腐蚀行为,并用金相显微镜和扫描电镜对腐蚀前后试样的表面形貌进行观察与分析.极化曲线的测试结果表明：锆基非晶合金在25℃下,在浓度为0.01 mol/L和0.1 mol/L的NaOH溶液中浸泡100 h,随着NaOH溶液浓度的升高,非晶合金的耐腐蚀能力下降;锆基非晶合金在25℃和60℃下,在浓度为0.01 mol/L的NaOH溶液中浸泡100 h,随着NaOH溶液温度的升高,非晶合金的耐腐蚀能力下降;锆基非晶合金和晶态合金在60℃下,在浓度为0.1 mol/L的NaOH溶液中浸泡100 h,非晶合金的耐腐蚀性能优于晶态合金.最后根据电化学腐蚀原理,从腐蚀介质温度和浓度方面的性质探讨锆基合金耐蚀性能的因素.
용전화학겁화곡선연구고기비정합금Zr53.5Cu26.5Ni5Al12Ag3재25℃화60℃온도하,재0.01 mol/L화0.1 mol/L적NaOH용액중부식100 h적부식행위,병용금상현미경화소묘전경대부식전후시양적표면형모진행관찰여분석.겁화곡선적측시결과표명：고기비정합금재25℃하,재농도위0.01 mol/L화0.1 mol/L적NaOH용액중침포100 h,수착NaOH용액농도적승고,비정합금적내부식능력하강;고기비정합금재25℃화60℃하,재농도위0.01 mol/L적NaOH용액중침포100 h,수착NaOH용액온도적승고,비정합금적내부식능력하강;고기비정합금화정태합금재60℃하,재농도위0.1 mol/L적NaOH용액중침포100 h,비정합금적내부식성능우우정태합금.최후근거전화학부식원리,종부식개질온도화농도방면적성질탐토고기합금내식성능적인소.
The corrosion behavior of Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic glass was investigated by CHI660C electrochemistry in NaOH solution at 25 ℃ and 60 ℃.The surface characteristic was observed and analyzed by metallography.The polarization curves result showed that under current density of Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic 0.01 mol · L^-1 and 0.1 mol · L^-1 at 25 ℃,corrosion resisting ability of Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic glass was worse with concentration increasing,under current density of Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic 0.01 mol · L^-1 at 25 ℃ and 60 ℃,Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic glass was worse with concentration increasing,and under current density of Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic 0.1 mol · L^-1 at 60 ℃,Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic glass had better corrosion resisting ability than its crystallized alloy.According to the electrochemical principle,temperature and concentration of solution properties on Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic corrosion resistance were discussed.