Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Yuri Mishin"'
Autor:
Ian Chesser, Yuri Mishin
Publikováno v:
Communications Materials, Vol 3, Iss 1, Pp 1-10 (2022)
Grain boundary self-diffusion mechanisms are not well understood, especially at intermediate temperatures most relevant to engineering applications. Here, molecular dynamics simulations at intermediate temperatures reveal strongly intermittent grain
Externí odkaz:
https://doaj.org/article/35f79ccd43aa4189bc4c789774f757fc
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
This work explores the impact of alloying on mechanical properties of nanoparticles in Ni-Co binary system. Combined experiment and atomistic simulation show surprising solution-softening effect in nanoparticles that contradicts the traditional solut
Externí odkaz:
https://doaj.org/article/26f47cf43ea94cc88a0658f68ad230d3
Autor:
Yuri Mishin, Ian Chesser
Publikováno v:
Communications Materials. 3
Grain boundary diffusion in polycrystalline materials is a physical phenomenon of great fundamental interest and practical significance. Although accelerated atomic transport along grain boundaries has been known for decades, atomic-level understandi
Publikováno v:
Journal of Materials Science. 56:18300-18312
Several previous studies demonstrated that defect-free faceted nanocrystals of face-centered cubic metals (such as Au, Ni, and Pd) exhibit extraordinarily high mechanical strength approaching the theoretical strength of the respective metals. In the
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Nature Communications
Nature Communications
The classic paradigm of physical metallurgy is that the addition of alloying elements to metals increases their strength. It is less known if the solution-hardening can occur in nano-scale objects, and it is totally unknown how alloying can impact th
Autor:
Yuri Mishin, R.K. Koju, B.C. Hornbuckle, Kiran Solanki, Joshua A. Smeltzer, S. Srinivasan, Kristopher A. Darling
Publikováno v:
Scripta Materialia. 191:185-190
Deformation-induced grain-growth in nanocrystalline materials is a widely-reported phenomenon that has been attributed to grain boundary (GB) processes. In this paper, we report on the opposite phenomenon, wherein a stable nanocrystalline (NC) Cu-Ta
Autor:
Kristopher A. Darling, S. Srinivasan, Kiran Solanki, C. Kale, R.K. Koju, Yuri Mishin, B.C. Hornbuckle
Publikováno v:
Acta Materialia. 199:141-154
Nanocrystalline (NC) materials possess excellent room temperature properties, such as high strength, wear resistance, and toughness as compared to their coarse-grained counterparts. However, due to the excess free energy, NC microstructures are unsta
Publikováno v:
Acta Mater
Interaction of vacancies with grain boundaries (GBs) is involved in many processes occurring in materials, including radiation damage healing, diffusional creep, and solid-state sintering. We analyze a model describing a set of processes occurring at
Autor:
Amit Sharma, Oz Mendelsohn, Anuj Bisht, Johann Michler, Raj Kiran Koju, Yuri Mishin, Eugen Rabkin
Publikováno v:
Acta Materialia. 243:118527
Autor:
M. Rajagopalan, R.K. Koju, Yuri Mishin, B.C. Hornbuckle, S. Turnage, Kristopher A. Darling, C. Kale, Kiran Solanki
Publikováno v:
Materials Today. 31:10-20
The potential benefits of nanocrystalline (NC) alloys for use in various structural applications stem from their enhanced mechanical strengths. However, deformation-induced grain growth in NC materials reduces the strength and is a widely reported ph