Grain Refiners

In casthouse applications, the control of grain size is essential in
maintaining product consistency and quality, in reducing cost and
maintaining high levels of productivity. Controlled addition of Al-TiB
master alloy in aluminum releases nucleating particles that promote
equiaxed, fine grained structures in cast alloys, thus redistricting
formation of columnar crystals. Al-TiB grain refiner alloy improves
homogeneity and allows uniform distribution of alloying elements,
reduce porosity and eliminate hot tearing in cast structures, improves
responsiveness to subsequent heat treatment and enhance mechanical
properties and machinability in the fabrication process.