| 复合变质对Al-Mg-Si合金组织与性能的影响 |
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| 引用本文： | 金祥龙,郑秀媛,姜锋,陈伟,陈宜钊,徐燕萍.复合变质对Al-Mg-Si合金组织与性能的影响[J].轻合金加工技术,2012,40(1):22-25. |
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| 作者姓名： | 金祥龙 郑秀媛 姜锋 陈伟 陈宜钊 徐燕萍 |
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| 作者单位： | 1. 浙江乐祥铝业有限公司,浙江绍兴,321800
2. 中南大学,湖南长沙,410083 |
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| 摘 要： | 试验研究了Al-5Ti-1B与Al-10Sr对Al-Mg-Si合金微观组织与力学性能的影响。结果表明:复合变质处理后合金基体晶粒细化明显,晶界偏聚减少,Al-Fe-Si相呈鱼骨状。通过挤压+固溶+时效处理后,合金的力学性能均高于单独细化或变质处理合金的,其抗拉强度、屈服强度和伸长率分别达到261 N/mm2、225 N/mm2和15%。
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| 关 键 词： | 复合变质 Al-10Sr中间合金 Al-5Ti-1B细化 Al-Mg-Si合金 |
Effect of composite modifier on microstructure and property of Al-Mg-Si alloy |
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| JIN Xiang-long
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ZHENG Xiu-yuan
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JIANG Feng
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CHEN Wei
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CHEN Yi-zhao
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XU Yan-ping.Effect of composite modifier on microstructure and property of Al-Mg-Si alloy[J].Light Alloy Fabrication Technology,2012,40(1):22-25. |
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| Authors: | JIN Xiang-long ZHENG Xiu-yuan JIANG Feng CHEN Wei CHEN Yi-zhao XU Yan-ping |
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| Affiliation: | 1.Lexiang Aluminum Co.Ltd.,Shaoxing 311800,China; 2.School of Materials Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | The effect of Al-5Ti-1B refiner and Al-10Sr master alloy on microstructure and mechanical properties of Al-Mg-Si alloy has been investigated.The results show that after composite modifier treating the matrix is being refined obviously,the grain boundary segregation declines,and the Al-Fe-Si phase emerges in herringbone shape.The mechanical properties of the alloy which has been composite modifier treated,extruded,solution heat treated and aged are much better than that of which is only treated with either refiner or Al-10Sr master alloy,whose tensile strength,yield strength and elongation are 261MPa,225MPa and 15% respectively. |
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| Keywords: | composite modifier Al-10Sr master alloy Al-5Ti-1B refiner Al-Mg-Si alloy |
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