About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
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Heterostructured and Gradient Materials (HGM IV): Tailoring Heterogeneity for Superior Properties
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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: |