在离心力的作用下，采用自蔓延高温合成技术（ＳＨＳ）制备复合金属管，研究添加剂对内衬层致密度、显微结构和显微硬度的影响．实验得出，反应物中加入添加剂，内衬层的显微结构不同，陶瓷晶粒呈柱状晶或等轴晶，并且内衬层显微硬度两相不均．通过增加离心力或添加能延长熔融期的添加剂，可改善内衬层的致密度，减少气孔． Under the action of centrifugal force, the composite metal tube was prepared by self-propagating high-temperature synthesis (SHS) technology to study the influence of additive on the density, microstructure and microhardness of the inner lining. It is found that the microstructure of the inner liner is different when additives are added into the reactants. The ceramic grains are columnar or equiaxed and the unevenness of the microhardness of the inner liner is two-phase. By increasing the centrifugal force or add additives can extend the melting period, can improve the lining of the density, reduce porosity.