| Tribological properties of 2024 aluminum alloy plasma-based ion implanted with nitrogen then titanium |
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| 引用本文： | 廖家轩,夏立芳,孙明仁,孙跃,刘维民,徐洮,薛群基. Tribological properties of 2024 aluminum alloy plasma-based ion implanted with nitrogen then titanium[J]. 中国有色金属学会会刊, 2003, 13(6) |
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| 作者姓名： | 廖家轩 夏立芳 孙明仁 孙跃 刘维民 徐洮 薛群基 |
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| 作者单位： | School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering，State Key Laboratory of Solid Lubrication，State Key Laboratory of Solid Lubrication，State Key Laboratory of Solid Lubrication Harbin Institute of Technology，Harbin 150001，China，State Key Laboratory of Solid Lubrication，Lanzhou Institute of Chemical Physics，the Chinese Academy of Sciences，Lanzhou 730000，China，Harbin Institute of Technology，Harbin 150001，China，Harbin Institute of Technology，Harbin 150001，China，Harbin Institute of Technology，Harbin 150001，China，Lanzhou Institute of Chemical Physics，the Chinese Academy of Sciences，Lanzhou 730000，China，Lanzhou Institute of Chemical Physics，the Chinese Academy of Sciences，Lanzhou 730000，China，Lanzhou Institute of Chemical Physics，the Chinese Academy of Sciences，Lanzhou 730000，China |
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| 基金项目： | Project(5 97710 5 9)supportedbytheNationalNaturalScienceFoundationofChina |
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| 摘 要： | 1 INTRODUCTIONOwingtolowdensityandhighspecificstrength ,aluminumanditsalloysareextensivelyusedinmanyfields ,especiallyinaviationandspaceindustry .Butlowhardnessandlowwearresistanceoftenlimittheirengineeringapplications .Surfacemodificationforalu minumanditsalloysbyionimplantationoffersthepossibilityofwideningtheirapplicationswherehighwearresistanceandlowdensityarerequired[15] .Sincenitrogenionisconvenienttoobtainandeasytocontrol,andAlNhasexcellentmechanicalproperties ,nitrogenionimplant…
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Tribological properties of 2024 aluminum alloy plasma-based ion implanted with nitrogen then titanium |
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| LIAO Jia-xuan. Tribological properties of 2024 aluminum alloy plasma-based ion implanted with nitrogen then titanium[J]. Transactions of Nonferrous Metals Society of China, 2003, 13(6) |
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| Authors: | LIAO Jia-xuan |
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| Abstract: | aluminum alloy was implanted with nitrogen then titanium at different titanium target sputtering currents by plasma-based ion implantation(PBII). The appearances were observed by atomic force microscope, and the surface hardness was measured with Knoop hardness tester and the mechanical property microprobe. Ball-on-disc dry wear experiments were performed under ambient air conditions, to study the tribological properties of the modified layers against GCr15 steel ball, employing various loads and a constant sliding speed. After dual modifications, surface hardness at 100 nm depth could reach to 9 GPa, increasing by about 5 times; tribological properties at lower load(e.g. 1 N) were obviously improved, with the friction coefficient(below 0.2) decreasing by over 60%, and the wear life(800 times) increasing by about 5 times. Meanwhile, with the increase of the sputtering current, the appearance is smooth, the surface hardness tends to a slow and even variation, the wear life presents a parabola-like change, and the friction coefficient and the adhesive wear degree decrease. However, tribological properties are reduced with the increase of the load due to the modified layer rapidly getting thin. |
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| Keywords: | aluminum alloy plasma-based ion implantation sputtering current tribological properties |
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