Effect of Orientation Relationships on the Stiffness and the Strength of the Dual-Phase Metals: Molecular Dynamics Simulation
Phase boundary is an important kind of interfaces for the dual-phase metals. Orientation relationship (OR) is a crucial factor affecting the performance of the phase boundaries and the dual-phase metals. Molecular dynamics simulation is performed to examine the structures of the bcc/fcc iron phase boundaries in Nishiyama–Wassermann (N–W) and Kurdjumov–Sachs (K–S) orientation relationships, and the performances of the dual-phase model with these ORs. The structural relaxation shows that the phase boundary with N-W relation has the lower energy than that in K-S relation. Stress-strain curves show that dual-phase model in N-W relation has the higher stiffness and strength than that in K-S relation. Simulation results show that phase boundary in N-W relation has a more exellent performance, and is preferred to be processed in heat treatment.
Wenzhe Chen, Pinqiang Dai, Yonglu Chen, Qianting Wang and Zhengyi Jiang
Y. Zhang et al., "Effect of Orientation Relationships on the Stiffness and the Strength of the Dual-Phase Metals: Molecular Dynamics Simulation", Advanced Materials Research, Vols. 479-481, pp. 601-604, 2012