高级检索
    赵青才, 严红革, 盛绍顶, 陈振华. 快速凝固结合粉末冶金法制备SiCp/AZ91复合材料的组织及性能[J]. 机械工程材料, 2009, 33(2): 39-42.
    引用本文: 赵青才, 严红革, 盛绍顶, 陈振华. 快速凝固结合粉末冶金法制备SiCp/AZ91复合材料的组织及性能[J]. 机械工程材料, 2009, 33(2): 39-42.
    shu
    ZHAO Qing-cai, YAN Hong-ge, SHENG Shao-ding, CHEN Zhen-hua. Microstructure and Mechanical Properties of SiCp/AZ91 Composites Prepared by RS/PM Process[J]. Materials and Mechanical Engineering, 2009, 33(2): 39-42.
    Citation: ZHAO Qing-cai, YAN Hong-ge, SHENG Shao-ding, CHEN Zhen-hua. Microstructure and Mechanical Properties of SiCp/AZ91 Composites Prepared by RS/PM Process[J]. Materials and Mechanical Engineering, 2009, 33(2): 39-42.
    shu

    快速凝固结合粉末冶金法制备SiCp/AZ91复合材料的组织及性能

    Microstructure and Mechanical Properties of SiCp/AZ91 Composites Prepared by RS/PM Process

      摘要
    • 摘要: 用快速凝固结合粉末冶金法制备了SiC颗粒增强镁合金基复合材料(SiCp/AZ91)棒材,研究了SiC颗粒含量对复合材料室温力学性能及显微组织的影响.结果表明:制备的复合材料棒材中SiC颗粒在基体中分布均匀,但仍存在局部颗粒团聚现象;随SiC颗粒含量的增加,复合材料的屈服强度、抗拉强度和断后伸长率均逐渐降低;热挤压过程中,镁、SiC和SiO2之间发生了界面反应,在界面生成Mg2Si等脆性相,影响了复合材料的界面性能.

       

      Abstract: SiCp/AZ91 composite bars were fabricated by rapid solidification/powder metallurgy(RS/PM) process.Effect of SiC content on the microstructure and mechanical properties of SiCp/AZ91 composites was investigated.The results show that the silicon carbide particulates(SiCp) were uniformly dispersed in the AZ91 magnesium alloy matrix,but agglomeration or clustering of the reinforcing SiC was observed at random intervals.The mechanical properties of the composites such as tensile strength,yield strength and elongation all degraded with the increase of SiC content.The Mg2Si appeared to originate on the surface of SiC and Mg matrix due to the reactions between the Mg,SiC and SiO2,which finally led to the early debonding between the reinforcement and the matrix.

       

      • HTML全文
      • 参考文献(8)
      • 相关文章
      • 施引文献
    • 资源附件(0)

    /

    返回文章
    返回