摘要
利用电化学测试、扫描电镜观察及能谱分析等方法,研究了AlCoCrFeNiCu高熵合金在不同介质中的电化学腐蚀行为。结果表明,在3.5%NaCl和30%H2O2溶液中,1Cr18Ni9Ti不锈钢与AlCoCrFeNiCu高熵合金相比,具有较正的自腐蚀电位,较小的腐蚀电流密度,AlCoCrFeNiCu高熵合金的腐蚀以点蚀和局部腐蚀为主;在1 mol/L H2SO4溶液中,AlCoCrFeNiCu高熵合金的腐蚀电流密度较1Cr18Ni9Ti不锈钢小,耐腐蚀性能更好。
The corrosion behaviors of AlCoCrFeNiCu high entropy alloy in different media were investigated by electrochemical measurement,scanning electron microscopy(SEM) and energy dispersive spectrum(EDS).The results show that,in 3.5%NaCl and 30%H2O2 solution,1Cr18Ni9Ti stainless steel exhibits higher pitting potential and lower current density compared with AlCoCrFeNiCu high entropy alloy.The major corrosion types are pitting corrosion and localized corrosion.But in 1 mol/L H2SO4 solution,AlCoCrFeNiCu high entropy alloy exhibits much better corrosion resistance than 1Cr18Ni9Ti stainless steel.
出处
《热加工工艺》
CSCD
北大核心
2011年第18期1-3,7,共4页
Hot Working Technology
基金
国家重点基础研究发展计划资助项目(2007CB607603)