Microstructure and mechanical properties of Al_2O_3-TiC/Al in situ Composites

Hongmei Chen; Huashun Yu; Jing ZhangLin ZhangGuanghui Min

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Microstructure and mechanical properties of Al_2O_3-TiC/Al in situ Composites

机译：Microstructure and mechanical properties of Al_2O_3-TiC/Al in situ Composites

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The Al_2O_3-TiC/Al composites were prepared by injecting CO_2 gas into Ti contained Al-Si alloy melts. The microstructure of the composites was examined by XRD, SEM and TEM. It was indicated that both Al_2O_3 and TiC particles can be formed by the in situ reaction of CO_2 with Ti and Al in the melten alloys. The Al_2O_3 and TiC particles in size of 0.3～1.5μm distributed uniformly in the matrix. The volume fraction of the particles is mainly depend upon the time of CO_2 injection. The tensile strength at room temperature of the composites can reach 346.08MPa and the hardness is 149.6MPa HBS, repectively, which are higher than those of the matrix alloy.

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来源
《Key engineering materials》 |2006年第2期|1857-1860|共4页
作者
Hongmei Chen; Huashun Yu; Jing ZhangLin ZhangGuanghui Min;
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作者单位

School of Materials Science and Engineering, Shandong University, Jinan, 250061, P.R. China;

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原文格式 PDF
正文语种英语
中图分类工程基础科学;
关键词
in situ reaction; aluminum-based composites; microstrcture; mechanical properties;

Microstructure and mechanical properties of Al_2O_3-TiC/Al in situ Composites

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