WebThe stability of the grain boundary precipitate dispersion was examined in order to determine the susceptibility of the grain boundary microstructure to liquation. These latter experiments were facilitated by a large, "static" grain structure, and this study may mark the first time that any grain boundary particle dispersion has been fully ... WebJan 8, 1999 · Grain boundary liquation was observed to occur only in certain segments of the same grain boundary. The boundary is divided into several parts due to its intersection with twin boundaries. A twin boundary, TW1, intersects the grain boundary at point a, which would modify its character.

Effect of nature of grain boundaries on intergranular …

WebGrain boundary regions in the heat-affected zone (HAZ) of arc welds, in a solution treated Al-3Cu alloy, were examined for liquation susceptibility. The welding experiments … http://files.aws.org/wj/supplement/WJ_1983_10_s267.pdf how do i stop redirects on microsoft edge

Significant decrease in interfacial energy of grain boundary …

WebSEM micrographs showing (a) a liquation crack and (b) a liquated but uncracked grain boundary in the HAZ of laser melting in the as-cast base metal. Source publication Effect of severe... WebJan 1, 2009 · intermetallics, or grain boundary segregated regions melt, with (usually) an expansion accompanying the phase change from solid to liquid. This is y 3% for many metals, but closer to 6% for Al... WebFeb 1, 2009 · Grain boundary (GB) liquation and the attendant cracking has been observed during welding of a variety of alloys, such as nickel–base superalloys, … how much nicotine in a can of copenhagen