Shadow corrosion is reproduced in University of Michigan lab

January 14, 2022, 9:36AMNuclear News
[CLICK TO VIEW FULL IMAGE] The diagram at left illustrates the experimental setup and the resulting zirconium oxide layer of varying thickness. The second diagram shows the circular zirconium alloy sample that is affected by the band of nickel alloy and radiation. Finally, the electron image at right shows a band of oxidation on the zirconium alloy sample. (Images: Peng Wang, Michigan Ion Beam Laboratory)

A longstanding issue in boiling water reactors—shadow corrosion on zirconium alloy fuel rods and fuel channels—has been reproduced in the Michigan Ion Beam Laboratory as part of an effort to understand and prevent the phenomenon. Research led by Peng Wang, a University of Michigan assistant research scientist in nuclear engineering and radiological sciences, was published in the January 2022 issue of the Journal of Nuclear Materials and described in a recent university news article.