| Effect of Scandium on Corrosion Resistance of Welded Joint of Al-6Mg-Zr Alloy |
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| 作者姓名： | 陶斌武 李松梅 刘建华 |
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| 作者单位： | School of Materials Science and Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China，School of Materials Science and Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China，School of Materials Science and Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China |
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| 摘 要： | Al Mgalloyshavebeenwidelyusedinmanyin dustries,especiallyinmarineandaircraftapplica tions,duetotheirgoodweldability,ductilityandex cellentcorrosionresistance.Beingthenon heattreat ablealloys,thesematerialsderivetheirstrengthpri marilyfromsolidsolutio…
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| 关 键 词： | 铝镁钪合金 剥离腐蚀 焊接接头 稀土元素 |
Effect of Scandium on Corrosion Resistance of Welded Joint of Al-6Mg-Zr Alloy |
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| Tao Binwu,LI Songmei,Liu Jianhua.Effect of Scandium on Corrosion Resistance of Welded Joint of Al-6Mg-Zr Alloy[J].Journal of Rare Earths,2005,23(2):216-219. |
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| Authors: | Tao Binwu LI Songmei Liu Jianhua |
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| Abstract: | The corrosion resistance of welded joints of Al-6Mg-Sc-Zr alloy was studied by neutral salt spray and exfoliation corrosion methods. The microstructure of welded joints was investigated by using optical microscope and transmission electron micrograph (TEM). It is demonstrated that the welded joints of Al-6Mg-Sc-Zr alloy are more corrosion resistance, comparing with Al-6Mg-Zr alloy. The addition of scandium in the alloy results in (Al3Sc, Zr) particles, potently refined grains and restrained recrystallization process. The formation of homogeneous, discontinuous distribution of β-phase in welded joints improves the corrosion resistance of welded joints of Al-Mg-Zr alloy with high level content of magnesium. |
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| Keywords: | corrosion Al-Mg-Sc alloy exfoliation corrosion welded joint rare earths |
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