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金属学报  2005 

微量Cr对Cu基块体非晶合金的形成能力及耐蚀性能的影响

, PP. 738-742

Keywords: Cu基块体非晶合金,微合金化,非晶形成能力

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Abstract:

XRD,DSC和DTA分析测试表明,微量Cr有利于提高块体非晶合金(Cu47Zr11Ti34Ni8)100-xCrx(x=0,0.5,1)非晶形成能力。室温动电位极化法对该合金在1mol/LHCl溶液、3%NaCl溶液和6mol/LKOH溶液中的电化学测试表明,非晶合金存在自钝化现象,随Cr含量增加,非晶合金的钝化区宽度显著增大,维钝电流密度降低,耐蚀性能增强。含微量Cr的Cu基块体非晶合金比不含Cr的具有更好的抗腐蚀性能,且远远优于不锈钢1Cr18Ni9Ti的抗腐蚀性能。

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