About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond III
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Presentation Title |
E-16: The Effect of Local Composition on the Initiation Mechanism of Adiabatic Shear Banding in WFeNiMo |
Author(s) |
Sarah E. O'Brien, Matthew J Beck |
On-Site Speaker (Planned) |
Sarah E. O'Brien |
Abstract Scope |
Multi-Principal Element Alloys (MPEAs) are a new field in metallurgy. High strain rate plastic deformation, however, has not been explored extensively in MPEAs. Adiabatic shear banding has been observed but not modeled in MPEAs like WFeNiMo. The is debate on the initiation mechanism for adiabatic shear banding being caused by thermal softening or some combination of dynamic recrystallization and recovery. By understanding initiation, the models can be used to predict the conditions in which adiabatic shear banding would occur. The effect of shifting the local composition on initiation mechanism of adiabatic shear banding have not been explore yet. Therefore, an atomistic approach will be taken to investigate the initiation mechanism of WFeNiMo’s adiabatic shear banding at a range of different compositions based on experimental concentrations. This would allow for better prediction of initiation sites for shear banding in WFeNiMo and its subsequent self-sharpening property. |