| 不同Cr含量的Ni基合金电化学腐蚀行为 |
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| 引用本文： | 张艳,田苗苗,李墨,刘蕾.不同Cr含量的Ni基合金电化学腐蚀行为[J].材料研究学报,2011(6):645-650. |
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| 作者姓名： | 张艳 田苗苗 李墨 刘蕾 |
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| 作者单位： | 沈阳工业大学理学院 |
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| 基金项目： | 国家自然科学基金50571108资助项目~~ |
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| 摘 要： | 利用电化学测试技术研究不同Cr含量的Ni基合金耐Cl-离子水溶液腐蚀的能力。结果表明：Ni基合金耐Cr离子腐蚀性能随着合金中Cr含量的提高而增强，溶液中Cl-离子浓度对Ni-9Cr、Ni-15Cr和Ni-20Cr合金有较大影响，特别是Ni-9Cr合金在0．6mol／LNaCl溶液中腐蚀最为严重，而对于Ni-25Cr和N...
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| 关 键 词： | 材料失效与保护 Ni-Cr合金 极化曲线 交流阻抗 XPS测试 NaCl溶液 |
Electrechemical Corrosion of Nickel-based Alloys with Different Chromium Contents |
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| ZHANG Yan TIAN Miaomiao LI Mo LIU Lei.Electrechemical Corrosion of Nickel-based Alloys with Different Chromium Contents[J].Chinese Journal of Materials Research,2011(6):645-650. |
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| Authors: | ZHANG Yan TIAN Miaomiao LI Mo LIU Lei |
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| Affiliation: | ZHANG Yan(**) TIAN Miaomiao LI Mo LIU Lei (School of Science,Shenyang Univesity of Technology,shenyang 110023) |
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| Abstract: | Corrosion-resistant performance of Nickel-based alloys with different Cr contents in CI~-ions solution was studied by using electrochemical techniques.The results showed that the resistant of the electrochemical corrosion was improved with the increasing of Cr contents in the Nickel-based alloy. The concentration of the CI~-ion solution had greatly influence on the corrosion resistance of Ni-9Cr, Ni-15Cr and Ni-20Cr alloys.Especially,the corrosion resistance of Ni-9Cr alloy was the most serious in 0.6mol/L NaCI solution.The passive film on the surface of the Nickel-based alloys in 0.6mol/L NaCI solution was analyzed by using the XPS testing technology.It was found that the proportion of Cr-oxide and hydrogen that formed on passive film surface of Ni-30Cr alloy were 4.840 and 4.130 mass percent, respectively,exceeding the other Ni-Cr alloys.Meanwhile,the mechanism of the pitting corrosion for Ni-Cr alloy in the different concentration of NaCI solution was discussed. |
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| Keywords: | materials failure and protection Ni-Cr alloy Polarization curves AC impedance XPS tested NaCI solution |
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