| abstract |
A graphene/magnesium alloy with excellent interface properties and a preparation method thereof, the preparation steps are as follows: (1) utilize magnesium chloride hexahydrate, sodium hydroxide and graphene oxide to react to form a mixture of magnesium hydroxide and graphene oxide; (2) ) Utilize sodium borohydride to reduce the mixture, and calcine at high temperature to obtain the graphene powder coated with magnesium oxide; (3) take the graphene powder coated with magnesium oxide and magnesium alloy powder as raw materials, under protective atmosphere, prepare by laser selective melting Graphene/magnesium alloys with magnesium oxide as interfacial phase. In the present invention, magnesium alloy is used as matrix, graphene is used as reinforcing phase, and magnesium oxide is used as interface phase. On the one hand, magnesium oxide and graphene form nano-scale contact and diffusion bonding interface, and on the other hand, through semi-eutectic lattice structure and magnesium alloy matrix The combination acts as an interface bridge to form a good interface bond between graphene and magnesium alloy, so that graphene can tightly wrap magnesium grains, thereby improving the mechanical properties and degradation resistance of magnesium alloy. |