| Al-20% Sn-4.5% Cu合金在高能球磨和烧结中的组织 |
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| 引用本文： | 马迎,刘辛,胡仁宗,朱敏,曾美琴.Al-20% Sn-4.5% Cu合金在高能球磨和烧结中的组织[J].金属热处理,2009,34(6). |
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| 作者姓名： | 马迎 刘辛 胡仁宗 朱敏 曾美琴 |
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| 作者单位： | 华南理工大学,材料科学与工程学院,广东,广州,510640 |
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| 基金项目： | 广东省自然科学基金团队项目 |
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| 摘 要： | 利用机械合金化方法制备Al-20%Sn-4.5%Cu合金粉末,将之压制成型后进行烧结.用X射线衍射仪(XRD)、扫描电镜(SEM)和差示扫描量热仪(DSC)分析了Al-20%Sn-4.5%Cu合金在高能球磨和烧结过程中的组织变化.结果表明,该合金粉末经40 h球磨后,可以获得纳米级Sn颗粒均匀弥散分布在Al基体上的组织,并且形成了Al(Cu)过饱和固溶体;在随后的烧结过程中,Sn相尺寸仍保持在200 mm左右,Al(Cu)过饱和固溶体则以CuAl2相的形式脱溶析出.
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| 关 键 词： | Al-Sn-Cu合金 高能球磨 烧结 组织 |
Microstructure of Al-20% Sn-4.5% Cu alloy during high energy ball milling and sintering processes |
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| MA Ying,LIU Xin,HU Ren-zong,ZHU Min,ZENG Mei-qin.Microstructure of Al-20% Sn-4.5% Cu alloy during high energy ball milling and sintering processes[J].Heat Treatment of Metals,2009,34(6). |
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| Authors: | MA Ying LIU Xin HU Ren-zong ZHU Min ZENG Mei-qin |
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| Affiliation: | School of Materials Science and Engineering;South China University of Technology;Guangzhou Guangdong 510640;China |
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| Abstract: | Al-20%Sn-4.5%Cu alloy powder was prepared by high energy ball milling.Microstructure of the alloy during high energy ball milling and sintering processes was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM)and differential scanning calorimetry(DSC).The results show that Sn nanoparticles are dispersed homogeneously in Al matrix microstructure by milling for 40 h in Al-20%Sn-4.5%Cu alloy powder.Meanwhile,Al(Cu)supersaturated solid solution is formed during the milling process.In subse... |
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| Keywords: | Al-Sn-Cu alloy high energy ball milling sintering microstructure |
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