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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Heterostructured and Gradient Materials (HGM IV): Tailoring Heterogeneity for Superior Properties
Presentation Title Outstanding Mechanical Properties in a Harmonic Structure Designed Titanium Due to Preferential Recrystallization
Author(s) Bhupendra Sharma, Motoki Miyakoshi, Mie Ota Kawabata, Kei Ameyama
On-Site Speaker (Planned) Bhupendra Sharma
Abstract Scope The effect of thermomechanical processing (TMP), consisting of cold rolling followed by annealing, on the microstructure and mechanical properties of three-dimensional hetero-structured Harmonic Structure designed pure Ti (HS-Ti) was studied. The TMP revealed the occurrence of preferential dislocation accumulation in the Shell as well as Shell-Core interface areas during plastic deformation, i.e. cold rolling, leading to the evolution of peculiar preferentially recrystallized structure localized in the Shell and Shell-Core interface regions of the HS-Ti compacts. The underlying mechanism for such a unique microstructural evolution in the TMP HS-Ti has been discussed and proposed. It has been demonstrated that it is feasible to manipulate the microstructure of Core/Shell via control-ling TMP parameters. It has been demonstrated that the peculiar phenomenon of preferential recrystallization in the predetermined Shell and Shell/Core interface could be a viable method in achieving precise control over microstructure and mechanical properties.
Proceedings Inclusion? Planned:

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