J. Phys. IV France 112 (2003) 365
Preferred orientation of rolling-induced martensite in an Fe-Mn-Si alloyK.K. Jee1, W.Y. Jang2 and Y.H. Chung1
1 Division of Materials, Korea Institute of Science and Technology, Seoul 136-791, Korea
2 Division of Metall. and Mater. Engr. & BK 21 Team, Chosun University, Gwangju 501-759, Korea
Preferred orientation of martensite induced by cold rolling is studied in an Fe-27Mn-3.5Si alloy. Since the flat rolling is essentially a plane strain condition, cold rolling is applied to induced the martensite. The alloy consists of stacking faults and thermal martensite with some variants in matrix. By cold rolling, martensite plates are preferably induced with a single variant, producing a preferred orientation. Rolling-induced martensite is observed to possess a preferred orientation of (1013)  . It is revealed that the  and normal direction of (1013) experience the largest contraction and expansion, respectively, in shear deformation when c/a is almost (8/3) 1/2.
© EDP Sciences 2003