| Zr基和Ti基块体非晶合金的电化学腐蚀性能(英文) |
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| 引用本文： | 寇宏超,李勇,张铁邦,李健,李金山.Zr基和Ti基块体非晶合金的电化学腐蚀性能(英文)[J].中国有色金属学会会刊,2011(3):552-557. |
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| 作者姓名： | 寇宏超 李勇 张铁邦 李健 李金山 |
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| 作者单位： | 西北工业大学凝固技术国家重点实验室;武汉材料保护研究所; |
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| 基金项目： | Project (2007CB607603) supported by the National Basic Research Program of China; Project (B08040) supported by the “111” Project, China |
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| 摘 要： | 用电化学方法研究Ti基和Zr基非晶合金及与非晶成分相同的Zr基晶态合金在1mol/LH2SO4和3.5%NaCl溶液中的腐蚀行为。极化曲线测试结果表明:在H2SO4溶液中,Zr基非晶和晶态合金自腐蚀电位比Ti基非晶合金的低;在NaCl溶液中,Zr基晶态合金的自腐蚀电位最低,而且在腐蚀过程中没有发生钝化,然而非晶合金都表现出钝化特性。交流阻抗测试结果表明:在NaCl溶液中非晶合金比晶态合金表现出更好的耐腐蚀性能,但是在H2SO4溶液中并没看到它们之间有明显的区别。表面形貌分析表明:在NaCl溶液中,这2种非晶合金都发生点蚀,而在H2SO4溶液中所有试验合金都表现出类似的特征,试样表面基本保持平整,只是在腐蚀表面的局部区域有一些裂纹出现。
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| 关 键 词： | 块体非晶合金 点蚀 耐腐蚀性 钝化 |
Electrochemical corrosion properties of Zr- and Ti-based bulk metallic glasses |
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| KOU Hong-chao,LI Yong,ZHANG Tie-bang,LI Jian,LI Jin-shan . State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an ,China,. Wuhan Research Institute of Materials Protection,Wuhan.Electrochemical corrosion properties of Zr- and Ti-based bulk metallic glasses[J].Transactions of Nonferrous Metals Society of China,2011(3):552-557. |
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| Authors: | KOU Hong-chao LI Yong ZHANG Tie-bang LI Jian LI Jin-shan State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi'an China Wuhan Research Institute of Materials Protection Wuhan |
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| Affiliation: | KOU Hong-chao1,LI Yong1,ZHANG Tie-bang1,LI Jian2,LI Jin-shan1 1. State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China,2. Wuhan Research Institute of Materials Protection,Wuhan 430030 |
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| Abstract: | The corrosion behaviors of Ti-based and Zr-based amorphous alloys and their corresponding crystallized alloys were studied by electrochemical methods. It is found that the corrosion potentials of Zr-based amorphous alloy and its corresponding crystalline counterpart are both lower than those of the Ti-based amorphous alloy in the 1 mol/L H2SO4 solution. In the 3.5% NaCl solution,Zr-based crystallized alloy exhibits the lowest corrosion potential among the experimental samples. No passivation is observed in ... |
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| Keywords: | bulk metallic glasses pitting corrosion corrosion resistance passivation |
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