Effects of Sc content on the microstructure of As-Cast Al-7wt.% Si alloys

Effect of scandium addition on the microstructure, mechanical and wear properties of the spray formed hypereutectic aluminum–silicon alloys

“…Furthermore, Kim et al [8] observed that the addition of scandium to the hypoeutectic Al-Si alloys modified the eutectic silicon phase in the Al-Si alloys significantly while similar observation was also reported by Zhang et al [9]. This phenomenon was attributed to the decreased surface tension of the Al-Si-Sc melt thereby improving the wettability between aluminum and silicon during solidification.…”

Effects of Sc and Zr microalloying additions on the microstructure and mechanical properties of new Al–Zn–Mg alloys

“…Of all microalloying additions to Al, Sc and Zr offer the greatest potential for developing new lightweight structural materials with excellent mechanical properties, good welding performance and desirable corrosion and creep resistance [1][2][3][4][5][6]. Mukhopadhyay [7] found that in Al-Zn-Mg-Cu alloy containing both Zr and Sc as the dispersoid forming elements, the recrystallized grains were very stable against coarsening, and the total elongation value can reach 916%, exhibiting high superplasticity.…”

Development of Al–Si–Zn–Sr filler metals for brazing 6061 aluminum alloy

“…With little eutectic undercooling, Si grows with a faced morphology and branches, but with significant undercooling, Si can grow uniformly with a non-faced plane. Hence, modification which reduces the Si phase nucleation temperature can lead to morphology changes [21].…”