Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7894938 | Corrosion Science | 2016 | 19 Pages |
Abstract
In situ X-ray synchrotron tomography was used to measure the localized corrosion rate of Mg2Si particles present in 7075 aluminum alloys in deionized ultra-filtered (DIUF) water. The evolution of hydrogen bubbles was captured as a function of time and the measured volume was used to calculate the local corrosion rate of Mg2Si particles. It was shown that in the absence of chloride ions, stress was needed to create fresh particle surfaces, either by fracture or debonding, to initiate corrosion at the particles.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Sudhanshu S. Singh, Jason J. Williams, Tyler J. Stannard, Xianghui Xiao, Francesco De Carlo, Nikhilesh Chawla,