2/QBe2爆炸复合界面结合层内的形变特征

he T2/QBe2 composite was prepared by flat plate explosive cladding method in the present work. Microstructure characteristics of adiabatic shear deformation on the side of QBe2 and deformation twins in the both T2 and QBe2 were investigated by means of OM and electronic backscatter diffraction (EBSD) techniques. The results indicated that adiabatic shear bands（ASBs） appeared only on the side of QBe2 under the condition of explosive cladding , and the mechanism of that was due to the differences in physical、mechanical and thermal properties between T2 and QBe2，and there were very fine equix grains in ASB；Orientation of grains in the ASB, as well as that of grains between shear bands, was essentially consistent, while there was large difference in orientation between grains in ASBs and those in matrix；Deformation twins were found in the both T2 and QBe2 matrixs after explosive loading.