| Microstructure of Al-4.99Zr-1.1B Master Alloy and Its Grain Refinement Effect on AZ31 Magnesium Alloy |
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| 作者姓名： | 王顺成 甘春雷 黎小辉 郑开宏 戚文军 |
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| 作者单位： | 广东省工业技术研究院（广州有色金属研究院），广东 广州 510650 |
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| 基金项目： | Guangdong Provincial Department of Science and Technology(2010A090200078,2012B090600051) |
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| 摘 要： | 采用K2Zr F4、KBF4混合粉末与铝熔体原位合成方法制备了Al-4.99Zr-1.1B合金,利用X射线衍射仪、光学显微镜和扫描电镜,研究了Al-4.99Zr-1.1B合金的显微组织及其对AZ31镁合金的晶粒细化作用。结果表明:Al-4.99Zr-1.1B合金中含有大量细小的Zr B2粒子。随着Al-4.99Zr-1.1B合金添加量的增加,AZ31镁合金的α-Mg晶粒逐渐细化,晶间β-Mg17Al12相从网状转变成细小块状。添加0.6%的Al-4.99Zr-1.1B合金,可使AZ31镁合金的α-Mg晶粒从170μm细化到45μm。Zr B2粒子作为α-Mg晶粒的异质形核核心使α-Mg晶粒得到细化。
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| 关 键 词： | Al-Zr-B合金 AZ31镁合金 晶粒细化 异质形核 |
| 收稿时间： | 4/4/2014 12:00:00 AM |
Microstructure of Al-4.99Zr-1.1B Master Alloy and Its Grain Refinement Effect on AZ31 Magnesium Alloy |
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| Wang Shuncheng,Gan Chunlei,Li Xiaohui,Zheng Kaihong and Qi Wenjun.Microstructure of Al-4.99Zr-1.1B Master Alloy and Its Grain Refinement Effect on AZ31 Magnesium Alloy[J].Rare Metal Materials and Engineering,2014,43(11):2567-2571. |
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| Authors: | Wang Shuncheng Gan Chunlei Li Xiaohui Zheng Kaihong and Qi Wenjun |
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| Affiliation: | Guangdong General Research Institute of Industrial Technology (Guangzhou Research Institute of Nonferrous Metals), Guangzhou 510650, China |
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| Abstract: | |
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| Keywords: | Al-Zr-B master alloy AZ31 magnesium alloy grain refinement heterogeneous nucleation |
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