| Title |
The Role of the Geometry of Crystallographic Slip Systems in Fatigue Crack Propagation |
| Authors |
홍순익(Sun Ig Hong); 권훈(Hoon Kwon) |
| Abstract |
In this study, the deviation of cracks from the primary slip plane in the late stage of the fatigue life is suggested to be determined by the relative orientation of Thomson`s tetrahedron with respect to the primary slip plane. By geometrical consideration of secondary slip planes with respect to primary cracks, it is suggested that a critical slip system(A6) is mast favored for secondary cracking in the presence of long Cracks. The observation of slip traces at the surface of cyclically deformed Cu-Al single crystals is consistent with the predictions from this study. |