| 原位生成(Al2O3+Al3Zr)p/A359复合材料的电磁制备及磨擦性能 |
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| 引用本文： | 王宏明,李桂荣,赵玉涛,戴起勋,李忠华.原位生成(Al2O3+Al3Zr)p/A359复合材料的电磁制备及磨擦性能[J].铸造技术,2005,26(6):459-461,464. |
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| 作者姓名： | 王宏明 李桂荣 赵玉涛 戴起勋 李忠华 |
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| 作者单位： | 江苏大学材料科学与工程学院,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金，教育部科学技术研究项目，江苏省自然科学基金 |
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| 摘 要： | 利用A359-Zr(CO3)2体系,原位反应合成法制备(Al2O3 Al3Zr)p/A359颗粒增强铝基复合材料,在制备过程中施加低频交变电磁场进行搅拌以提高复合材料性能.干滑动磨擦试验表明,复合材料的耐磨擦性比纯基体合金明显提高,施加电磁搅拌后复合材料在较大载荷下的耐磨性提高,磨损量随载荷增加的瞬变载荷由58.8 N提高到78.8 N.磨损表面的SEM分析显示:纯基体合金为粘着磨损和剥层磨损,复合材料的磨损为磨粒磨损为主,施加电磁搅拌后的复合材料为纯磨粒磨损.
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| 关 键 词： | 原位反应 铝基复合材料 颗粒增强 电磁制备 磨擦性能 |
| 文章编号： | 1000-8365(2005)06-0459-03 |
Electromagnetic Fabrication and Wear Properties of (Al2O3+Al3Zr) p/A359 Composites with In-situ Process |
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| WANG Hong-Ming,LI Gui-rong,ZHAO Yu-tao,DAI Qi-xun,LI Zhong-hua.Electromagnetic Fabrication and Wear Properties of (Al2O3+Al3Zr) p/A359 Composites with In-situ Process[J].Foundry Technology,2005,26(6):459-461,464. |
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| Authors: | WANG Hong-Ming LI Gui-rong ZHAO Yu-tao DAI Qi-xun LI Zhong-hua |
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| Abstract: | The particle reinforced aluminum alloy matrix composites,(Al_2O_3+Al_3Zr)_p/A359,was fabricated by In-situ reaction in melt A359 and Zr(CO_3)_2 system.During the fabrication process,a low frequency alternative electromagnetic field was employed to improve the properties of compsites by stirring,The results of dry friction experiments indicated that the wear resistance of composites was better than that of pure matrix alloy.And the wear resistance of composites under a heavy load was improved by electromagnetic stirring.The scanning electron microscopy (SEM) analysis of worn-out surface indicated that the wear mechanism of pure matrix alloy was adhesive wear and spalling wear,that of composites without electromagnetic stirring (EMS) in fabrication was mainly abrasion and that of electromagnetic fabricated composites is pure abrasion. |
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| Keywords: | In-situ reaction Aluminum matrix composies Particle reinforced Electromagnetic fabrication Wear property |
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