| Title |
Preferred Orientation of εMartensite in Fe - 15Mn - 5Cr - 5Co - 3Si Alloy |
| Authors |
지광구(K . K . Jee); 장우양(W . Y . Jang); 양권승(G . S . Yang); 신명철(M . C . Shin) |
| Abstract |
The microstructural difference between thermal and stress-induced ε martensite was investigated in iron-based shape memory alloy. The thermal εmartensite plates were found to be randomly distributed with several variants, causing no shape change during cooling and heating. But stress-induced ε plates have almost single variant in one grain. Pole figure analysis showed that ε plates whose [1.63 0 1] ε direction is paralell to tensile stress are preferably formed on the deformation. The [1.63 0 1] εdirection was proved to be the most expandable one in fcc→hcp transformation by [112] γ shear deformation. |