Effect of specific pressure on microstructure and mechanical properties of squeeze casting ZA27 alloy
查看参考文献16篇
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文摘
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The effect of specific pressure on the microstructure and mechanical properties of ZA27 squeezed castings with high height-to-thickness ratio was studied. The results of DTA and SEM show that at high specific pressure the eutectic reaction of squeeze casting ZA27 alloy is restrained, and the final solidified structure is (η+ε) phases instead of eutectic phase (β+h+ε). At the same time, the primary reaction is promoted in squeeze casting ZA27 alloy solidified at high pressure, and the fine microstructure is obtained with the increase of pressure. Al and Cu elements are homogeneously distributed in matrix of squeeze casting ZA27 alloy. The homogenously distributed high-density fine ε phase can effectively hinder dislocation motion, and then the strength and plasticity of squeeze casting ZA27 alloy are increased. |
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来源
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Transactions of Nonferrous Metals Society of China
,2010,20(1):59-63 【核心库】
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DOI
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10.1016/s1003-6326(09)60097-2
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关键词
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ZA27 alloy
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squeeze casting
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specific pressure
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地址
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School of Materials Science and Engineering, Shenyang University of Technology, Liaoning, Shenyang, 110178
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1003-6326 |
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学科
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金属学与金属工艺 |
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文献收藏号
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CSCD:3820481
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