Implications of Microstructure in Helium-Implanted Nanocrystalline Metals.

ABSTRACT: Helium bubbles are known to form in nuclear reactor structural components when displacement damage occurs in conjunction with helium exposure and/or transmutation. If left unchecked, bubble production can cause swelling, blistering, and embrittlement, all of which substantially degrade materials and-moreover-diminish mechanical properties. On the mission to produce more robust materials, nanocrystalline (NC) metals show great potential and are postulated to exhibit superior radiation resistance due to their high defect and particle sink densities; however, much is still unknown about the mechanisms of defect evolution in these systems under extreme conditions. Here, the performances of NC nickel (Ni) and iron (Fe) are investigated under helium bombardment via transmission electron microsco

SUBMITTER: Nathaniel JE 

PROVIDER: S-EPMC9231260 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature