江峰
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  • 所在单位:材料科学与工程学院
  • 学历:博士研究生毕业
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  • 学位:博士
  • 学科:材料科学与工程
  • 学科:材料科学与工程
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博士生黄朋朋关于压制烧结铝合金及复合材料的工作在 Powder Metallurgy (粉末冶金)杂志上发表!
  • 发布时间:2025-03-06
  • 文章标题:博士生黄朋朋关于压制烧结铝合金及复合材料的工作在 Powder Metallurgy (粉末冶金)杂志上发表!
  • 内容:

    祝贺博士生黄朋朋关于压制烧结铝合金及复合材料的工作在 Powder Metallurgy (粉末冶金)杂志上发表,这种工作在学术界已经很少见了, 大家都不想干,难度大,分数又低…..

    感谢 深圳市卡德姆科技有限公司、东莞歌鸿材料科技有限公司、西安福莱电工材料有限公司、电磁能国家实验室等单位和Li Kemin教授的帮助。

     

    Enhanced mechanical properties and wear  resistance of Al Cu Mg alloy fabricated by press-and-sinter processing
     
    Pengpeng Huang   , Letian Wang   , Zhongyue Yang   , Yake Wu   Zhenzhuo Ling   , Qianhang Cui   , Hualei Wang   and Feng Jiang
     
    Abstract
    Two of the main challenges facing the current application of press-and-sinter aluminium alloys are poor densifification and  insuffificient properties such as mechanical properties and wear resistance. In this work, the press-and-sinter Al4.4Cu 1.6Mg alloy (wt.%) and 5SiC/Al4.4Cu1.6Mg (wt.%) composite are successfully developed through optimizing the sinter ing temperature and heat treatment. The results show that the relative density, hardness and mechanical properties of as  sintered alloy and composite increase with the increase of the sintering temperature. Under the same sintering tempera ture, the relative density of the composite is comparable to that of the single alloy. When the sintering temperature is 596 °C, both the alloy and composite achieve full densifification with a relative density of 99.7% and 99.3%, respectively. Consequently, their hardness and mechanical properties also achieve the optimal value. For the peak-aged state, the alloy exhibits a favourable combination of yield strength, ultimate tensile strength of 325.3 MPa and 394.0 MPa and frac ture elongation of 3.8%. The addition of the SiC particles further enhances the yield strength and ultimate tensile strength of the peak-aged alloy to 375.0 MPa and 441.0 MPa, respectively. The wear rate of the peak-aged composite is comparable  to that of the 45 steel and is less than half that of the peak-aged alloy due to the enhanced hardness and the stable wear protection provided by the SiC particles.