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将碳纳米管与铝粉的混合压块加入镁合金熔体中,采用熔体法制备含碳纳米管的ZM5合金。研究了含碳纳米管的镁合金熔体的压铸特性和力学性能特点。利用光学显微镜,扫描电子显微镜观察合金的显微组织。结果表明,加入少量碳纳米管对压铸合金成形性能没有影响。当碳纳米管加入量达到1.3%时,ZM5压铸合金试样的抗拉强度为190 MPa。当碳纳米管加入量为1.0%时,压铸合金具有最大伸长率。
A mixed briquette of carbon nanotubes and aluminum powder was added to a magnesium alloy melt, and a ZM5 alloy containing carbon nanotubes was prepared by a melt method. The die-casting properties and mechanical properties of magnesium alloy melts containing carbon nanotubes were investigated. The microstructure of the alloy was observed with a light microscope and a scanning electron microscope. The results show that adding a small amount of carbon nanotubes has no effect on the formability of die-casting alloys. When the amount of carbon nanotubes reached 1.3%, the tensile strength of ZM5 die-cast alloy specimens was 190 MPa. When the amount of carbon nanotubes is 1.0%, the die casting alloy has the maximum elongation.