Grain boundary transition associated intergranular failure analysis at TMAZ/SZ interface of dissimilar AA7475-AA2198 joints by friction stir welding
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DOI: 10.1016/j.matlet.2020.128557
Abstract: Abstract Post-weld heat-treatment (PWHT) of dissimilar AA7475-AA2198 friction stir welds (FSW) at 560 °C followed by water-quenching since cracks were observed at the TMAZ/SZ interface in retreating AA7475 upon quenching. Microstructural studies revealed that composition difference… read more here.
Keywords: dissimilar aa7475; aa7475 aa2198; grain boundary; boundary transition ... See more keywords