(哈尔滨工业大学材料科学与工程学院, 哈尔滨 150001)
摘 要: 制备了含不同粘结剂的SiC晶须预制块,并采用挤压铸造法制备出含不同粘结剂的SiCw/ZM5镁基复合材料,对其组织结构和力学性能进行了研究。结果表明,采用含酸性磷酸铝粘结剂制备的SiCw/ZM5镁基复合材料的性能最佳,这可能和粘结剂与晶须以及基体合金的界面反应有关。
关键字: 碳化硅晶须 镁合金 复合材料 预制块 粘结剂 制备工艺 性能
(School of Materials Science and Engineering,Harbin Institute of Technology, Harbin 150001, P. R. China)
Abstract:Several kinds of SiC whisker preforms with different binders were prepared, SiCw/ZM5 magnesium matrix composites from different preforms were fabricated with squeeze casting method, the microstructure and mechanical properties of the composites were studied. The results show that the SiCw/ZM5 magnesium matrix composites with acid phosphate binder obtained the best mechanical properties, which may be due to the reaction between the binder and whisker and matrix alloy.
Key words: SiC whisker magnesium alloy composites preform binder fabrication
properties