|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Energy Dissipation and Defect Evolution in Concentrated Solid-solution Alloys
||Yanwen Zhang, G. Malcolm Stocks, Ke Jin, Hongbin Bei, Chenyang Lu, Lumin Wang, Brian C. Sales, Laurent K. Beland, Roger E. Stoller, William J. Weber
|On-Site Speaker (Planned)
Contrary to conventional alloys with low impurity concentration and possible multiple phases, energy dissipation and defect evolution in single–phase concentrated solid solution alloys (SP-CSAs) with extreme compositional disorder is unexplored. Based on a closely integrated computational and experimental study, including electronic structure calculations, intrinsic transport property measurements, primary damage formation in displacement cascades, damage accumulation and microstructure evolution, we have explicitly demonstrated that that chemical disorder and compositional complexity in SP–CSAs have an enormous impact on defect dynamics through the substantial modification of energy dissipation pathways. Considerable improvement in radiation resistance with increasing complexity from pure nickel to binary and to more complex alloys is observed under ion irradiation.
This work was supported by Energy Dissipation to Defect Evolution (EDDE), an Energy Research Frontier Center supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences. B.C.S. was supported by DOE/BES, Materials Sciences and Engineering Division.
||Planned: A print-only volume