2016 | ANNUAL REPORT 93 Distributed Partnership at a Glance NSUF and Partners Facilities and Capabilities Center for Advanced Energy Studies Microscopy and Characterization Suite Collaborators Argonne National Laboratory Stuart Maloy (co-principal investigator) Idaho National Laboratory Assel Aitkaliyeva (co-principal investigator) MaCS at CAES facility has provided opportunities to perform world-class research on nuclear materials. — Cheng Sun,Postdoc Figure 4. Bright-field and dark-field TEM micrographs of irradiated tempered martensite phase in Fe‑9Cr alloy. Irradiation‑induced voids were formed in the damaged region. The void density is much lower compared to that in irradiated δ‑ferrite phase.