About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Purveyors of Processing Science and ICME: A SMD Symposium to Honor the Many Contributions of Taylan Altan, Wei Tsu Wu, Soo-Ik Oh, and Lee Semiatin
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Presentation Title |
Martensitic Variant Selection Under Applied Stress: A New Approach Applied to the β→𝛼 Transformation in Titanium |
Author(s) |
Zachary Brunson, Adam Pilchak, Eric Payton, Aaron P Stebner |
On-Site Speaker (Planned) |
Zachary Brunson |
Abstract Scope |
The problem of variant selection in Martensitic transformations has been explored in various aspects ever since the phenomenological theories were first developed by Wechsler, Lieberman, and Read in 1953 and by Bowles and Mackenzie in 1954. We tackle the scenario of variant selection under an applied stress using a new approach which combines aspects of the phenomenological theory as applied by Wang, Aindow, and Starink in 2003 for investigating variant cluster effects and an eigen-strain approach as described by Ledbetter and Dunn in 2000. The result is an approach for identifying the variant(s) and/or variant cluster(s) which minimize the strain energy of the system during a martensitic transformation under an imposed state of stress. We specifically apply the approach to the β→𝛼 transformation in Titanium, and explore various cases of imposed stress such as applied uniaxial and shear loadings and the strain field around dislocations in the parent phase. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |