期刊
CORROSION SCIENCE
卷 104, 期 -, 页码 330-335出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2015.12.027
关键词
Aluminum alloys; Intermetallic; X-ray tomography; Pitting corrosion
资金
- Office of Naval Research (ONR) [N00014-10-1-0350]
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. (C) 2016 Elsevier Ltd. All rights reserved.
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