| Microstructure-Property Correlation in AI_4C_3 Dispersion Strengthened Al Composite |
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| 作者单位： | Jing BI Zongyi MA Shengjin WU Yuxiong LU Hongwei SHEN Institute of Metal Research，Academia Sinica，Shenyang，110015，China |
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| 摘 要： | The microstructure and tensile properties of Al_4C_3 dispersion strengthened Al composite fabricatedby reaction milling technique were investigated.It is indicated that the rod-like Al_4C_3 dispersoidshaving a diameter of 0.02-0.03 μm and a length of 0.1-0.3μm are formed by reaction of C with Al,and uniformly distributed in the Al matrix.The interface between Al_4C_3 and Al is clean and theinterfacial bonding is good.The matrix consists of the subgrains which have the size of 0.3-0.4μm,and most of the Al_4C_3 dispersoids are distributed on the subgrain boundaries.The 11 vol.-%Al_4C_3/Al composite exhibits an UTS (ultimate tensile strength) of 400 MPa and anelongation-to-failure of 8.0%.
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| 收稿时间： | 1993-01-28 |
Microstructure-Property Correlation in AI_4C_3 Dispersion Strengthened Al Composite |
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| Authors: | Jing BI Zongyi MA Shengjin WU Yuxiong LU Hongwei SHEN Institute of Metal Research Academia Sinica Shenyang China |
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| Abstract: | The microstructure and tensile properties of Al_4C_3 dispersion strengthened Al composite fabricated by reaction milling technique were investigated.It is indicated that the rod-like Al_4C_3 dispersoids having a diameter of 0.02-0.03 μm and a length of 0.1-0.3μm are formed by reaction of C with Al, and uniformly distributed in the Al matrix.The interface between Al_4C_3 and Al is clean and the interfacial bonding is good.The matrix consists of the subgrains which have the size of 0.3-0.4μm, and most of the Al_4C_3 dispersoids are distributed on the subgrain boundaries.The 11 vol.-% Al_4C_3/Al composite exhibits an UTS (ultimate tensile strength) of 400 MPa and an elongation-to-failure of 8.0%. |
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| Keywords: | Al composite Al_4C_3 dispersion strengthening reaction milling microstructure tensile properties |
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