FABRICATION AND RESIDUAL STRESS CHARACTERIZATION OF SQUEEZE INFILTRATED Al18B4O33/Mg FUNCTIONALLY GRADED MATERIAL

摘要

In this study, three types of functionally graded A118B4O33/Mg composites which consisted of 2, 3 and 4 layers and where volume fractions of Al18B4O33 were gradually changing from 0 to 35% were fabricated using squeeze infiltration technique. The mechanical parameters of each layer were measured for the analysis of residual stress. Elastic finite element numerical models were applied to the analysis of thermal residual stress. The analytic results showed that the residual stresses were significantly decreased in the macrointerface with increasing the number of layer.