| Preparation and mechanical properties of SiC／2024 composite by semisolid casting |
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| 引用本文： | MENGXiangyun DINGHua 等.Preparation and mechanical properties of SiC／2024 composite by semisolid casting[J].稀有金属(英文版),2002,21(3):203-206. |
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| 作者姓名： | MENGXiangyun DINGHua |
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| 作者单位： | SchoolOfMaterialsandMetallurgy,NortheasternUniversity,Shenyang110004,China |
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| 基金项目： | The project is financially supported by the National Key Basic Research and Development Foundation (G2000067208-4) |
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| 摘 要： | A SiC/2024 composite was made by semisolid casting.The wetting between SiC and Al matrix is improved by treating SiC particles at a high temperature,coating K2ZrF6,and adding Mg to the Al melt,An effective way to remove the gas around SiC particles was also found.Microstructures were observed under optical microscope(OM) and scanning electron microscopy(SEM).The results show that SiC particles and Al matrix are well bonded and no gaps or cavities around the particles are observed.SiC particles distribute homogeneously in the Al matrix.The existence of SiC particles results in the increase of wear resistance and strength.
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| 关 键 词： | SiC／2024复合材料 半固态浇注 机械性质 |
Preparation and mechanical properties of SiC/2024 composite by semisolid casting |
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| MENG Xianyun,DING Hua,CHEN Yanbo,WEN Jinglin.Preparation and mechanical properties of SiC/2024 composite by semisolid casting[J].Rare Metals,2002,21(3):203-206. |
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| Authors: | MENG Xianyun DING Hua CHEN Yanbo WEN Jinglin |
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| Abstract: | A SiC/2024 composite was made by semisolid casting. The wetting between SiC and Al matrix is improved by treating SiC particles at a high temperature, coating K2ZrF6, and adding Mg to the Al melt. An effective way to remove the gas around SiC particles was also found. Microstructures were observed under optical microscope (OM) and scanning electron microscopy (SEM). The results show that SiC particles and Al matrix are well bonded and no gaps or cavities around the particles are observed. SiC particles distribute homogeneously in the Al matrix. The existence of SiC particles results in the increase of wear resistance and strength. |
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| Keywords: | semisolid casting SiC/2024 composite wetting mechanical property |
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