Article ID: 24-00340
The present study is conducted to reveal the plastic deformation behaviors of a Ti-6Al-2Sn-4Zr-2Mo-0.1Si (Ti-6242) alloy sheet with α − β lamellar structure under cyclic tension – compression deformation by using a commercial finite element analysis with homogenization theory and crystal plasticity theory. The geometrically necessary and statistically stored dislocations were considered in the calculation to evaluate the work-hardening behaviors. The results suggest that the mechanical behavior of a Ti-6242 alloy sheet is strongly affected by the activation of slip systems that depend on the relationship of the initial orientation of each phase. Slip transmission had an obvious influence on the stress state around the grain boundary and on the activities of the mezzo- and macroscopic work-hardening behavior of the nominal stress – strain curve with the Bauschinger effect.
