Zobrazeno 1 - 10
of 62
pro vyhledávání: '"N. Osetsky"'
Publikováno v:
Chemical Reviews. 122:789-829
The development of advanced structural alloys with performance meeting the requirements of extreme environments in nuclear reactors has been long pursued. In the long history of alloy development, the search for metallic alloys with improved radiatio
Autor:
Yuri N. Osetsky
Publikováno v:
Tungsten. 4:20-27
Experimental data show that the accumulation of rhenium and osmium from transmutation reactions severely affect the microstructural evolution and property degradation of tungsten-based materials under neutron irradiation. Theory and modeling have con
Autor:
Yuri N. Osetsky
Publikováno v:
Tungsten. 3:65-71
Neutron and heavy-ion irradiation of tungsten produces nanometer-size vacancy voids, gas-filled bubbles and dislocation loops. These defect features can affect mechanical properties and the impact can be quite significant because of their high densit
Publikováno v:
Journal of Materials Research. 36:298-310
High-entropy alloys (HEAs) are proposed as potential structural materials for advanced nuclear systems, but little is known about the response of matrix chemistry in HEAs upon irradiation. Here, we reveal a substantial change of matrix chemical conce
Autor:
Keyvan Ferasat, Yanwen Zhang, Laurent Karim Béland, A. V. Barashev, Zhongwen Yao, Yuri N. Osetsky
Publikováno v:
npj Computational Materials, Vol 6, Iss 1, Pp 1-8 (2020)
In this paper we report a new fundamental understanding of chemically-biased diffusion in Ni–Fe random alloys that is tuned/controlled by the intrinsic quantifiable chemical complexity. Development of radiation-tolerant alloys has been a long-stand
Autor:
V. V. Kitov, A. P. Grishin, Inesa Benediktovna Kozlovskaya, M. J. F. Rosenberg, Kbr, Houston, Usa, N. Lysova, Elena Tomilovskaya, E. V. Fomina, N. Osetsky, S. J. Wood, Millard F. Reschke, I. V. Rukavishnikov, I. S. Kofman
Publikováno v:
Aerospace and Environmental Medicine. 54:94-100
A joint NASA and Institute of Biomedical Problems (IBMP) study, designated as the Field Test, was designed to investigate how the immediate post-flight effects of long duration spaceflight impact performance on vestibular and sensorimotor-related fun
Publikováno v:
Journal of Alloys and Compounds. 805:1175-1183
We present how the ordered and disordered arrangement of elements can affect the transport properties of point defects in Ni–Fe metallic alloys using atomistic simulations. With molecular dynamics (MD) based on both first-principles calculations an
Publikováno v:
Acta Materialia. 173:184-194
Recombination of Frenkel defects is an important process that contributes to the performance of materials under irradiation. In this work, the recombination mechanisms of Frenkel defects in face-centered cubic Ni and Ni‒containing solid‒solution
Publikováno v:
Current Opinion in Solid State and Materials Science. 23:92-100
Recent irradiations of Ni-Fe concentrated solid solution alloys have demonstrated significant improvement of radiation performance. This improvement is attributed to redistribution of the alloying elements near sinks of point defects (voids, dislocat
Publikováno v:
Radiation Effects and Defects in Solids. 174:329-338
The dependence of the interactions of intermediate-size ½ self-interstitial atom (SIA) loops with an edge dislocation on strain rate and temperature was investigated by molecular dynamics (MD) simulations for the interatomic potential derived by Ack