Deformation, dislocation evolution and the non-Schmid effect in body-centered-cubic single- and polycrystal tantalum

A physically-informed continuum crystal plasticity model is presented to elucidate deformation mechanisms, dislocation evolution and the non-Schmid effect in body-centered-cubic (bcc) tantalum widely used as a key structural material for mechanical and thermal extremes. We show the unified structura...

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Veröffentlicht in:	International journal of plasticity 2023-04, Vol.163 (C), p.103529, Article 103529
Hauptverfasser:	Lee, Seunghyeon, Cho, Hansohl, Bronkhorst, Curt A., Pokharel, Reeju, Brown, Donald W., Clausen, Bjørn, Vogel, Sven C., Anghel, Veronica, Gray, George T., Mayeur, Jason R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Body-centered-cubic (bcc) crystals Crystal plasticity Dislocation density evolution ex situ neutron diffraction measurement Non-Schmid effects Single- and polycrystal tantalum Slip instability
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