A MODEL OF DEFORMATION MECHANISM OF THE SYSTEM CU-TIC

In the paper a study of fracture mechanism of Cu-TiC system by an ''in situ tensile test in SEM'' was done, It is shown that during tensile strain the first cracks appear in the places with the largest critical strain epsilon = 0.16 after decohesion of larger particles or cluster s of small particles. The further stress increase causes formation of a saw-like fracture in an angle alpha = 45 degrees following rows of p articles declined from the direction of tension. The fracture morpholo gy is transcrystalline ductile. A model of fracture mechanism in the i nvestigated system was suggested.