| 半固态成形制备铝铅难混溶合金 |
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| 引用本文： | 刘明伟,陈体军,刘二勇,张素卿.半固态成形制备铝铅难混溶合金[J].中国铸造装备与技术,2011(2). |
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| 作者姓名： | 刘明伟 陈体军 刘二勇 张素卿 |
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| 作者单位： | 1. 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050
2. 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050;兰州理工大学有色金属合金及加工教育部重点实验室,兰州,730050 |
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| 摘 要： | 通过机械搅拌半固态成形技术制备铝铅系难混溶合金.研究了温度对该合金铅颗粒晶粒尺寸和分布及固相率的影响.微观结构观察表明:通过强力的机械搅拌,可以把铝铅合金中的铅颗粒弥散均匀分布于基体合金中.随着温度的降低:合金的固相率增大,从630℃开始凝固到585℃合金固相率升到67%,呈非线性变化;初生α-Al颗粒在机械搅拌的作用下变得圆整;铅颗粒粒度趋于减小,分布分布趋于均匀、一致,与温度之间同样呈非线性变化;合金中铅含量测试表明,铅的含量处于5.80%左右.说明可利用机械搅拌结合半固态成形技术制备铝铅系难混溶合金.
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| 关 键 词： | 半固态成型 铝铅合金 机械搅拌 温度 固相率 |
Research on Al-Pb Immiscible Alloy Synthesized by Semi-Solid Forming Technology |
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| LIU MingWei,CHEN TiJun,LIU ErYong,ZHANG SuQing.Research on Al-Pb Immiscible Alloy Synthesized by Semi-Solid Forming Technology[J].China Foundry Machinery & Technology,2011(2). |
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| Authors: | LIU MingWei CHEN TiJun LIU ErYong ZHANG SuQing |
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| Affiliation: | LIU MingWei1,CHEN TiJun2,LIU ErYong1,ZHANG SuQing1(1.State Key Laboratory of New Nonferrous Materials,Lanzhou University of Technology,Lanzhou 730050,Gansu China,2.Key Laboratory of Non-ferrous Metal Alloys,Ministry of Education,Gansu China) |
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| Abstract: | Al-Pb alloy immiscible mixing has been synthesized by mechanical agitation technology combined with preparation of semi-solid forming technology and the temperature impact on the lead particles grain size,distribution and solid fraction of alloys have been researched.Microstructure observation showed that lead particles of Al-Pb alloy could distributed homogeneously with the matrix alloy by strong mechanical agitation.The solid fraction increased with the temperature decreased.The solid fraction up to 67.1%... |
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| Keywords: | Semi-solid forming Al-Pb Alloy Mechanical agitation Temperature Solid fraction |
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