A duplex process was designed to modify the alloy surface using surface mechanical attrition treatment(SMAT)prior to microarc oxidation(MAO).A surface nanocrystalline(SNC)layer was formed on the surface of Al alloy by SMAT,on which a ceramic coating grew by MAO,finally the SNC-MAO composite coating are fabricated.The tensile properties of the SMATed alloy,MAO coating and SNC-MAO composite coating were comparatively evaluated.Experimental results show that the yield strength and tensile strength of the subst...
WEN Lei 1,WANG Ya-ming2,JIN Ying1(1National Center for Materials Service Safety,University of Science and TechnologyBeijing,Beijing 100083,China;2Institute of Advanced Ceramics,HarbinInstitute of Technology,Harbin 150080,China)铝合金材料在飞机等高技术装备