Influence of microstructure on grain refining performance of Al–Ti–B master alloys

Production of Al–Ti–B master alloys from Ti sponge and KBF4

“…Al 3 Ti starts to precipitate out of the melt as soon as the Ti solubility limit (approximately 0.4% in the neighborhood of the salt reaction temperature [28]) is exceeded. One would thus expect the microstructural features and the grain refining performance of alloy 2 to be very similar to those of alloy 1.…”

In situ synthesis of Al–TiCp composites by reacting K2TiF6 and particulate graphite in molten aluminium

“…Ti + 3Al → Al 3 Ti (2) K 2 TiF 6 is reduced by molten aluminium, releasing Ti which dissolves in the melt before precipitating out as Al 3 Ti particles as soon as its solubility limit (approximately 0.4% in the neighborhood of the salt reaction temperature [32]) is exceeded. Reaction (1) is evidenced by the XRD analysis of the spent salt it generates, which shows both KAlF 4 and K 3 AlF 6 reflections (Fig.…”

Grain refinement response of LM25 alloy towards Al–Ti–C and Al–Ti–B grain refiners

“…As AlB 2 and TiB 2 are isomorphous (Al,Ti)B 2 is expected to behave in similar fashion towards the nucleation of Al. However, in reality AlB 2 and (Al,Ti)B 2 , perform more effectively for Al-Si alloy [16] than Al-5Ti-1B master alloy containing TiB 2 and TiAl 3 particles [17]. Mohanty and Gruzleski [7] proposed an alternative mechanism for the grain refinement of Al-Si alloy with Al-B master alloys.…”