期刊
CORROSION
卷 69, 期 4, 页码 396-402出版社
NATL ASSOC CORROSION ENG
DOI: 10.5006/0804
关键词
5xxx series; aluminum; corrosion; grain boundaries
资金
- ASTM International
- Office of Naval Research
- Office of Naval Research Global
Sensitization of 5xxx series Al alloys involving precipitation of beta phase (Mg2Al3) at grain boundaries was studied for different exposure times at 100 degrees C upon AA5083-H131 (UNS A95083). In this work, we reveal that fracture surfaces prepared by liquid gallium embrittlement can yield a quantification of grain boundary beta phase with significant statistics on beta phase size and spacing. This information is a necessary first step toward development of quantitative damage models to describe intergranular corrosion (IGC) and stress corrosion (IGSCC).
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