| 微量元素Sr对Al—Si合金凝固过程的影响 |
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| 引用本文： | 王子忱,王晓惠.微量元素Sr对Al—Si合金凝固过程的影响[J].高等学校化学学报,1991,12(11):1503-1506. |
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| 作者姓名： | 王子忱 王晓惠 |
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| 作者单位： | 吉林大学化学系，吉林大学化学系，吉林大学化学系，吉林大学化学系 长春 130023，长春 130023，长春 130023，长春 130023 |
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| 摘 要： | 用差热分析法系统地研究了Sr对Al-Si共晶、亚共晶及超共晶合金的动态凝固过程的影响。结果表明,Sr既可促进α-Al成核,使其初晶析出温度比二元合金中α-Al相析出温度明显提高,又能抑制初晶Si成核,使超共晶中初晶Si相析出温度较二元合金中Si的初晶的实际析出温度明显降低,还能促使共晶合金成核,使加Sr后的共晶析出温度明显提高。
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| 关 键 词： | 铝硅合金 凝固 锶 变质作用 |
Effect of Trace Modifier Sr on Solidification Process of Al-Si Alloys |
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| Wang Zi-chen,Wang Xiao-hui,Zhang Li-hua,Zhao Mu-yu.Effect of Trace Modifier Sr on Solidification Process of Al-Si Alloys[J].Chemical Research In Chinese Universities,1991,12(11):1503-1506. |
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| Authors: | Wang Zi-chen Wang Xiao-hui Zhang Li-hua Zhao Mu-yu |
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| Abstract: | The influence of Sr on the solidification process of Al-Si alloys was systematically investigated by differential thermal analysis. The results obtained show that Sr in the meit raised the primary ?Al nucleation temperature and the temperature of eutectic solidification, and retarded the primary silicon nucleation. It is, therefore, possible that rich Al phase is the leading crystallization phase during the Al-Si eutectic alloys solidification. |
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| Keywords: | Al-Si alloys Solidification process Influence of Sr |
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