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Firstly, Cu-Al alloy was doped with selected elements of Fe, Mn and Ni, and Cu-Al-Fe-Mn-Ni alloy, after being synthesized by adopting hot-pressing sintering process respectively at different temperatures, was subjected to solution-aging treatment. The microstructure of the alloy was characterized by means of metallographic microscope, scanning electron microscope, X-ray diffractometer among others, and the density, hardness and electrical conductivity of the alloy were tested. It is found that at a low temperature (750 ℃), the synthesized alloy has lower density, around 7.946 g/cm³, and poor mechanical properties, with Vickers hardness of 253.9HV. Both density and hardness of the alloy increase with the rise of temperature. At 950 ℃, the density increases to 8.058 g/cm³ and the Vickers hardness rises to 281.5HV. But the hot-pressing sintering temperature hasn' t significant impact on the electrical conductivity of the alloy. The solution-aging treatment can improve the density of the alloy. Meanwhile, solution treatment leads to slight reduce in the hardness and electrical conductivity of the alloy, while aging treatment brings the reverse effect.

, authors=Zebang LI, Eryong LIU, authorsList=Zebang LI, Eryong LIU, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314907298275876931, articleId=1314907297747394625, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=热压烧结温度对元素掺杂Cu-Al合金组织与性能的影响, columnId=1236276110049202322, journalTitle=矿冶工程杂志, columnName=材料, runingTitle=null, highlight=null, articleAbstract=

选取Fe、Mn、Ni元素对Cu-Al合金进行掺杂，采用热压烧结工艺在不同温度下制备Cu-Al-Fe-Mn-Ni合金，并对其进行固溶和时效处理。运用金相显微镜、扫描电子显微镜（SEM）、X射线衍射仪（XRD）等手段对合金微观组织进行表征，测试了合金的密度、硬度和导电率。结果表明，低温（750 ℃）时，合金密度较低（约为7.946 g/cm³）、力学性能较差（维氏硬度为253.9HV）；随着温度升高，合金的密度、硬度均有所提升，950 ℃时合金密度增至8.058 g/cm³、维氏硬度上升至281.5HV。热压烧结温度对合金导电率的影响不显著。固溶和时效处理可以提升合金的密度；固溶处理使合金的硬度和导电率略微降低，而时效处理能提高合金的硬度和导电率。

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李泽邦（1999—），男，山东济南人，硕士研究生，主要研究方向为金属材料改性。E-mail: lzb585211@163.com

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李泽邦（1999—），男，山东济南人，硕士研究生，主要研究方向为金属材料改性。E-mail: lzb585211@163.com

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