Mechanical behavior of UO2 at sub-grain length scales: A quantification of creep properties via high temperature mechanical testing

Benjamin E. Shaffer, Robert E. McDonald, Harn C. Lim, Pedro Peralta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, creep behavior was quantified via high temperature mechanical testing; to facilitate this, techniques were developed to: 1) measure plasticity and creep properties samples at sub-grain length scales using ex-situ mechanical testing at elevated temperatures, and 2) characterize microstructure before and after testing at the same location on the sample surface to evaluate effects of creep at the microscale. Conventional uniaxial compression testing experiments were performed under controlled atmospheres, which insured stoichiometry control, at a temperature of 900 °C, which allowed measurement of properties involving creep behavior (e.g. creep strain rates). Samples were characterized using Scanning Electron Microscopy (SEM) and Electron Backscatter Diffraction (EBSD).

Original languageEnglish (US)
Title of host publicationEnergy
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume6B-2016
ISBN (Electronic)9780791850596
DOIs
StatePublished - 2016
EventASME 2016 International Mechanical Engineering Congress and Exposition, IMECE 2016 - Phoenix, United States
Duration: Nov 11 2016Nov 17 2016

Other

OtherASME 2016 International Mechanical Engineering Congress and Exposition, IMECE 2016
CountryUnited States
CityPhoenix
Period11/11/1611/17/16

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Shaffer, B. E., McDonald, R. E., Lim, H. C., & Peralta, P. (2016). Mechanical behavior of UO2 at sub-grain length scales: A quantification of creep properties via high temperature mechanical testing. In Energy (Vol. 6B-2016). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2016-67772