(V) Investigating Temperature Profile in Induction Heated Billets and As-Cast Grain Structure Using Computer Simulation
Billet casters are used for recycling powder by melting the powder on top of billets. The billet is pulled down vertically while powder is fed from the top. The typical as-cast grain structure in the transverse direction of a small diameter, 50mm to 100mm, is predominately columnar. These sizes of ingots are produced in segmented water-cooled copper molds heated by induction. Some as-cast equiaxed grains are present in the center of the ingot. The ideal as-cast grain structure is equiaxed with a relatively fine grain size in the 100 microns to 200 microns range. This paper will present the results of a study of the thermal profile of the cold-wall induction melted and heated titanium alloy ingot. A correlation will be drawn between the thermal profile and the as-cast grain structure.
See more of: Processing and Applications