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
Experimental and Numerical Investigation of Wind Characteristics over Mountainous Valley Bridge Site Considering Improved Boundary Transition Sections
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DOI: 10.3390/app10030751
Abstract: To study wind characteristics over mountainous terrain, the Xiangjiang Bridge site was employed in this paper. The improved boundary transition sections (BTS) were adopted to reduce the influence of “artificial cliffs” of the terrain model… read more here.
Keywords: boundary transition; characteristics mountainous; wind characteristics; bridge site ... See more keywords