TY - JOUR
T1 - Dynamic plastic deformation delocalization in FCC solid solution metals
AU - Anjaria, Dhruv
AU - Heczko, Milan
AU - You, Daegun
AU - Calvat, Mathieu
AU - Sanandiya, Shuchi
AU - Rajkowski, Maik
AU - Tirunilai, Aditya Srinivasan
AU - Sehitoglu, Huseyin
AU - Laplanche, Guillaume
AU - Stinville, J. C.
N1 - This is a colorblind-friendly version (protanopia) following the guidance from Colour Blind Awareness98. The color-blind version of this article has been made possible thanks to funding from the NSF (award #2338346). J.C.S., D.A., M.C. and S.S. acknowledge the National Science Foundation (NSF) DMR CAREER Award #2338346 for research funding. H.S. and D.Y. acknowledge the National Science Foundation (NSF) CMMI Award #21-25821 for research funding. This work was carried out in the Materials Research Laboratory Central Research Facilities, University of Illinois. M.H. acknowledges financial support from the Czech Science Foundation under the Junior Star project with contract No. 24-11058M. The use of CEITEC Nano Research Infrastructure, supported by the CzechNanoLab project LM2023051 funded by MEYS CR, is gratefully acknowledged. A.S.T. acknowledges support from the DFG through project No. 553555345 (SR 170/2-1).
PY - 2026/2/2
Y1 - 2026/2/2
N2 - Metallic materials undergo irreversible deformation under mechanical loading, leading to intense local plastic localization that reduces their mechanical performance. We identify a mechanism of plastic deformation that dynamically promotes the homogenization of plasticity in face-centered cubic solid solution-strengthened metallic alloys. We observe that this mechanism occurs within a narrow range of stacking fault energies and involves competing deformation between nanoscale twinning and slip. This phenomenon is attributed to a new mechanism referred to as dynamic plastic deformation delocalization, which opens a new design space for enhancing the mechanical performance of metallic materials. We demonstrate that the activation of this mechanism has a significant impact on fatigue properties, greatly enhancing fatigue strength when it occurs.
AB - Metallic materials undergo irreversible deformation under mechanical loading, leading to intense local plastic localization that reduces their mechanical performance. We identify a mechanism of plastic deformation that dynamically promotes the homogenization of plasticity in face-centered cubic solid solution-strengthened metallic alloys. We observe that this mechanism occurs within a narrow range of stacking fault energies and involves competing deformation between nanoscale twinning and slip. This phenomenon is attributed to a new mechanism referred to as dynamic plastic deformation delocalization, which opens a new design space for enhancing the mechanical performance of metallic materials. We demonstrate that the activation of this mechanism has a significant impact on fatigue properties, greatly enhancing fatigue strength when it occurs.
UR - https://www.scopus.com/pages/publications/105032669455
UR - https://www.scopus.com/pages/publications/105032669455#tab=citedBy
U2 - 10.1038/s41467-026-69046-3
DO - 10.1038/s41467-026-69046-3
M3 - Article
C2 - 41629314
AN - SCOPUS:105032669455
SN - 2041-1723
VL - 17
JO - Nature communications
JF - Nature communications
IS - 1
M1 - 2262
ER -