论文部分内容阅读
利用粉末混合与加压法制备了Mg、Y2O3和SiC的混合粉末压坯,在氩弧热源作用下,通过基板的热传导和上部混合粉末压坯自蔓延释放的能量获得镁基复合材料,利用X-衍射方法和光学显微镜分析了混合粉末、混合粉末压坯和镁基复合材料的物相组成、显微组织。结果表明:在氩弧热源作用下,通过基板的热传导和上部混合粉末压坯自蔓延释放的能量可获得镁基复合材料;混合粉末相为Mg、Mg2SiO4、Y5Si3、SiC、Y2O3和Mg24Y5,表明界面发生反应,有新相生成;镁基复合材料由黑色大块Mg、SiC强化组织等组成。
The mixed powder compacts of Mg, Y2O3 and SiC were prepared by the powder mixing and pressurization method. Magnesium matrix composites were obtained by the heat transfer of the substrate and the self-propagating energy released from the upper mixed powder compact under the action of argon arc heat source. - diffraction and optical microscopy analysis of the mixed powder, mixed powder compact and magnesium matrix composites phase composition, microstructure. The results show that Mg-based composite can be obtained by the heat transfer of the substrate and the self-propagating energy released from the green compacts. The mixed powder phases are Mg, Mg2SiO4, Y5Si3, SiC, Y2O3 and Mg24Y5, indicating that the interface Reaction occurs, a new phase is formed; magnesium-based composite material consists of black bulk Mg, SiC strengthening organization.