Effect of solidification processing parameters on the cellular spacings in the Al–0.1wt% Ti and Al–0.5wt% Ti alloys

Cellular growth during transient directional solidification of hypoeutectic Al–Fe alloys

“…Image processing systems Neophot 32 (Carl Zeiss, Esslingen, Germany) and Leica Quantimet 500 MC (Leica Imaging systems Ltd., Cambridge, England) were used to measure the cellular spacing, 1 (about 40 independent readings for each selected position, with the average taken to be the local spacing) and their distribution range. The method used for measuring the cellular spacing on the transverse section (perpendicular to the growth direction) was the triangle method [27,34].…”

“…Many studies have been made of the "as-solidified" microstructures of binary alloys in order to determine the interdependence of cellular and dendrite arm spacings and solidification parameters, both theoretically and experimentally [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Data on arm spacings have been derived from alloys which have been melted in situ and then unidirectionally solidified under steady-state or transient conditions.…”

“…Data on arm spacings have been derived from alloys which have been melted in situ and then unidirectionally solidified under steady-state or transient conditions. Recently, Gündüz et al [34] have investigated the relationship between the processing parameters and cellular spacing during steady-state solidification of Al-Ti dilute alloys at high growth rates. However, studies focusing on experimental cellular spacings for transient solidification conditions remain scarce in the literature.…”

Investigation of intermetallics in hypoeutectic Al–Fe alloys by dissolution of the Al matrix

“…Image processing systems Neophot 32 (Carl Zeiss, Esslingen, Germany) and Leica Quantimet 500 MC (Leica Imaging systems Ltd, Cambridge, England) were used to measure the cellular spacing, l 1 (about 40 independent readings for each selected position, with the average taken to be the local spacing) and their distribution range. The method used for measuring the cellular spacing on the transverse section (perpendicular to the growth direction) was the triangle method [14][15][16].…”

Numerical Analysis of the Rapid Solidification Process of NiTi Binary Alloy

“…Such a geometrical setup (adiabatic wall) will allow us to perform further directional solidication experiments, in which the solidication processing parameters (e.g. temperature gradient and growth rate) can be controlled independently [9] so that one may study the dependence of the microstructural parameter on either temperature gradient at constant growth rate or growth rate at constant temperature gradient for the constant initial NiTi solute composition.…”