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    刘劲松, 陈振华, 蒲玉兴, 李建跃, 何建军. Al-10%Cr合金的固液混合压铸工艺[J]. 机械工程材料, 2009, 33(1): 30-32.
    引用本文: 刘劲松, 陈振华, 蒲玉兴, 李建跃, 何建军. Al-10%Cr合金的固液混合压铸工艺[J]. 机械工程材料, 2009, 33(1): 30-32.
    shu
    LIU Jing-song, CHEN Zhen-hua, PU Yu-xing, LI Jian-yue, HE Jian-jun. Solid-liquid Mixed Die-casting of Al-10%Cr Alloy[J]. Materials and Mechanical Engineering, 2009, 33(1): 30-32.
    Citation: LIU Jing-song, CHEN Zhen-hua, PU Yu-xing, LI Jian-yue, HE Jian-jun. Solid-liquid Mixed Die-casting of Al-10%Cr Alloy[J]. Materials and Mechanical Engineering, 2009, 33(1): 30-32.
    shu

    Al-10%Cr合金的固液混合压铸工艺

    Solid-liquid Mixed Die-casting of Al-10%Cr Alloy

      摘要
    • 摘要: 采用固液混合压铸工艺制备了Al-10%Cr合金,用光学显微镜、密度测量仪、硬度计、拉伸试验机和摩擦试验机等对合金的组织和性能进行了分析.结果表明:该工艺获得的高铬铝合金坯料显微组织均匀,晶粒细小呈近等轴状,密度为2.924 g·cm-3;热挤压后合金的抗拉强度σb为119 MPa,屈服强度σ0.2为89 MPa,伸长率δ为1%,磨损率为16.9 mg·m-1,均优于传统铸造和半固态铸造所得相同成分合金的;该工艺使Al-10%Cr合金的工业应用成为可能.

       

      Abstract: Solid-liquid mixed die-casting technology was applied to prepare Al-10%Cr alloy.The microstructure and properties were studied by means of optical microscopy,densimeter and sclerometer etc.The results show that the grains can be obviously refined with near-spherical shape and the density is 2.924 g·cm-3.The optimum properties after hot extrusion were σb=119 MPa,σ0.2=89 MPa,δ=1%,and the wear rate was 169 mg·m-1,which were preferable to those alloys with the same chemical composition prepared by conventional casting and semi-solid casting.Thus,the Al-10%Cr alloy has the possibility to be used in the industry.

       

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