%0 Journal Article %1 Kibey20076843 %A Kibey, S. %A Liu, J.B. %A Johnson, D.D. %A Sehitoglu, H. %D 2007 %J Acta Materialia %K ab initio twinning %N 20 %P 6843 - 6851 %R 10.1016/j.actamat.2007.08.042 %T Predicting twinning stress in fcc metals: Linking twin-energy pathways to twin nucleation %U http://www.sciencedirect.com/science/article/B6TW8-4PXNHW3-1/2/2a67742903c9b81f9093651fc34d9637 %V 55 %X Deformation twinning is observed in numerous engineering and naturally occurring materials. However, a fundamental law for critical twinning stress has not yet emerged. We resolve this long-standing issue by integrating twin-energy pathways obtained via ab initio density functional theory with heterogeneous, dislocation-based twin nucleation models. Through a hierarchical theory, we establish an analytical expression that quantitatively predicts the critical twinning stress in face-centered cubic metals without any empiricism at any length scale. Our theory predicts a monotonic relation between the unstable twin stacking fault energy and twin nucleation stress revealing the physics of twinning.

@article{Kibey20076843, abstract = {Deformation twinning is observed in numerous engineering and naturally occurring materials. However, a fundamental law for critical twinning stress has not yet emerged. We resolve this long-standing issue by integrating twin-energy pathways obtained via ab initio density functional theory with heterogeneous, dislocation-based twin nucleation models. Through a hierarchical theory, we establish an analytical expression that quantitatively predicts the critical twinning stress in face-centered cubic metals without any empiricism at any length scale. Our theory predicts a monotonic relation between the unstable twin stacking fault energy and twin nucleation stress revealing the physics of twinning.}, added-at = {2010-11-03T17:45:05.000+0100}, author = {Kibey, S. and Liu, J.B. and Johnson, D.D. and Sehitoglu, H.}, biburl = {https://www.bibsonomy.org/bibtex/2aa6fce370f58f970bfd35bcd47989f18/riche.ma}, description = {ScienceDirect - Acta Materialia : Predicting twinning stress in fcc metals: Linking twin-energy pathways to twin nucleation}, doi = {10.1016/j.actamat.2007.08.042}, interhash = {b4805a102f4a16605bbcb3a0097a17ec}, intrahash = {aa6fce370f58f970bfd35bcd47989f18}, issn = {1359-6454}, journal = {Acta Materialia}, keywords = {ab initio twinning}, number = 20, pages = {6843 - 6851}, timestamp = {2010-11-03T17:45:05.000+0100}, title = {Predicting twinning stress in fcc metals: Linking twin-energy pathways to twin nucleation}, url = {http://www.sciencedirect.com/science/article/B6TW8-4PXNHW3-1/2/2a67742903c9b81f9093651fc34d9637}, volume = 55, year = 2007 }