Interface-Specific Radiation Induced Segregation in Nanocrystalline Alloys
EMSL Project ID
47685
Abstract
The aim of the proposed project is to provide a fundamental understanding of how metallic nanocrystalline alloys can be utilized as radiation tolerant materials in future nuclear reactors. This aim will be achieved by utilizing the versatility of interfacial analysis tools in PNNL’s EMSL in conjunction with nanomaterial synthesis capabilities in CINT-LANL, in-situ TEM capabilities at both Drexel University and Argonne National Laboratory, and multi scale simulation expertise at PNNL. Although much is known already about the effects of radiation damage accumulation, information about its origin and mechanisms at the nanoscale and how these mechanisms evolve as a function of grain boundary (GB) structure/character and density (i.e., grain size) is still unclear. Research oriented towards understanding the fundamentals of damage mechanism of materials under extreme environments was identified as an important priority research direction for basic research related to advanced energy technology by the Office of Basic Energy Sciences. Relevant to the EMSL proposal call, the proposed systematic and multiscale investigation of radiation damage as a function of GB type and GB density falls in line with the “Science of Interfacial Phenomena” science theme, including in-situ real-time investigations relevant to energy production. The proposed project is expected to contribute towards the development of predictive models of interfacial processes. The anticipated results will support the development of new, stronger, multifunctional, damage-tolerant materials for future energy applications.
Project Details
Project type
Exploratory Research
Start Date
2012-12-03
End Date
2013-10-18
Status
Closed
Released Data Link
Team
Principal Investigator