Control of γ′ morphologyin nickel base superalloys through alloy design and densification processing under electric field

Effects of High‐Density Electric Current Pulse on the Undercooling of Fe‐B Eutectic Alloy Melt

“…Many research studies have been carried out to investigate the effect of ECPs on the solidification of pure metals [10], eutectic alloys [11][12][13], and solid solution alloys [14] in the past decades. e mechanisms proposed to understand the ECP-induced grain refinement include the heterogeneous nucleation mechanism that the nucleation rate is promoted owing to the raised undercooling [7,15,16], the skin effect, the dendrite fragmentation mechanism caused by Joule heating [17], Lorenz force [11,15], and the crystal rain [10].…”

Effect of medium-density direct current on dendrites of directionally solidified Pb–50Sn alloy

“…5,6 However, relatively few investigations have been performed on the DC treatment of materials. Many previous studies [7][8][9][10] showed that the microstructures of the casting were refined by low density (order of 0.05-0.1 A cm -2 ) DC treatment. Recently, DC of the order of 10 1-2 A cm -2 was applied to modify the microstructures of alloys.…”