| 氮钛双离子注入AZ31镁合金的抗腐蚀和力学性能 |
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| 引用本文： | 刘洪喜,孟春蕾,林波,蒋业华,周荣锋.氮钛双离子注入AZ31镁合金的抗腐蚀和力学性能[J].材料热处理学报,2011,32(8). |
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| 作者姓名： | 刘洪喜 孟春蕾 林波 蒋业华 周荣锋 |
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| 作者单位： | 昆明理工大学材料科学与工程学院,云南昆明,650093 |
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| 基金项目： | 国家自然基金(50671045); 云南省自然基金(2008ZC021M); 昆明理工大学分析测试基金(2009-022) |
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| 摘 要： | 利用金属蒸汽真空弧（MEVVA）离子源在AZ31镁合金表面进行了氮钛（N/Ti）双离子共注入。通过俄歇电子能谱（AES）、扫描电镜（SEM）、X射线衍射（XRD）、电化学测试系统和显微硬度计,分析比较了双离子共注入前后试样表面的相组成、原子浓度-深度分布、抗腐蚀性能和显微硬度。结果表明：基体合金表面改性层主要由Mg、MgO、Ti、TiO2、TiN等相组成;改性层厚约180 nm;处理后试样显微硬度较基体提高了50%;在3.5%饱和NaCl溶液中的腐蚀电位提高600 mV,腐蚀电流密度下降110μA.cm2,极化电阻增加了67.9倍。
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| 关 键 词： | 离子注入 AZ31镁合金 抗腐蚀性能 力学性能 |
Corrosion resistance and mechanical property of AZ31 magnesium alloy by N/Ti duplex ion implantation |
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| LIU Hong-xi,MENG Chun-lei,LIN Bo,JIANG Ye-hua,ZHOU Rong-feng.Corrosion resistance and mechanical property of AZ31 magnesium alloy by N/Ti duplex ion implantation[J].Transactions of Materials and Heat Treatment,2011,32(8). |
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| Authors: | LIU Hong-xi MENG Chun-lei LIN Bo JIANG Ye-hua ZHOU Rong-feng |
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| Affiliation: | LIU Hong-xi,MENG Chun-lei,LIN Bo,JIANG Ye-hua,ZHOU Rong-feng(Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China) |
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| Abstract: | Nitrogen and titanium duplex ion implantation was conducted on AZ31 magnesium alloy surface by metal vapor vacuum arc(MEVVA) ion implantor.The phases,atomic concentration-depth distribution,corrosion resistance and microhardness of the modified alloy were investigated by means of auger electron spectroscopy(AES),scanning electronic microscopy(SEM),X-ray diffraction(XRD),electrochemical corrosion and microhardness tests.The results show that the surface layer is composed of Mg,MgO,Ti,TiO2 and TiN phases,and ... |
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| Keywords: | duplex ion implantation AZ31 magnesium alloy corrosion resistance mechanical property |
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