| 模具温度对Al-Si合金中共晶Si形貌的影响 |
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| 引用本文： | 张伟,王明星,刘志勇,刘忠侠,翁永刚,宋天福,杨升.模具温度对Al-Si合金中共晶Si形貌的影响[J].铸造技术,2007,28(8):1084-1087. |
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| 作者姓名： | 张伟 王明星 刘志勇 刘忠侠 翁永刚 宋天福 杨升 |
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| 作者单位： | 郑州大学物理工程学院教育部材料物理重点实验室,河南,郑州,450052 |
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| 摘 要： | 研究了模具温度对Al-Si合金中共晶Si形貌的影响。结果表明：模具温度改变了合金铸态组织中Si相形貌,影响了其在随后固溶处理中的变化进程。对于经过适当变质处理的Al-Si共晶合金,在模具温度较低时,铸态共晶Si相为细小的纤维状,经短时固溶处理就能得到良好的共晶Si相形貌;而在模具温度较高时,铸态Si相表现为较粗的纤维或蠕虫状,固溶处理后,Si相的尺寸较大,形态较差。
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| 关 键 词： | Al-Si合金 模具温度 固溶处理 共晶Si形貌 |
| 文章编号： | 1000-8365（2007）08-1084-04 |
| 修稿时间： | 2006-09-162007-05-29 |
Effect of Mould Temperature on the Eutectic Si Morphology in Al-Si Alloy |
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| ZHANG Wei,WANG Ming-xing,LIU Zhi-yong,LIU Zhong-xia,WENG Yong-gang,SONG Tian-fu,YANG Sheng.Effect of Mould Temperature on the Eutectic Si Morphology in Al-Si Alloy[J].Foundry Technology,2007,28(8):1084-1087. |
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| Authors: | ZHANG Wei WANG Ming-xing LIU Zhi-yong LIU Zhong-xia WENG Yong-gang SONG Tian-fu YANG Sheng |
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| Affiliation: | Department of physics, Laboratory of Materials Physics of the Ministry of Education of China, Zhengzhou University, Zhengzhou 450052, China |
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| Abstract: | The effect of mould temperature on the eutectic Si morphology of Al-Si alloy is investigated.The results indicate that the mould temperature changes the as-cast Si morphology obviously,and the Si evolution in the subsequent solution treatment.For modified Al-Si alloy,when the mould temperature is lower, the as-cast Si morphology is fine fibrous,and can be transformed into fine eutectic Si through a short time solution treatment;when the mould temperature is higher,the as-cast Si morphology is coarse fibrous or vermicular,and the Si particles is larger and coarser after solution treatment. |
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| Keywords: | Al-Si alloy Mould temperature Solution treatment Eutectic Si morphology |
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