The grain structure of castings: Some aspects of modeling
Conference
·
OSTI ID:227783
- Michigan Technological Univ., Houghton, MI (United States)
The efficacy of the modeling of the solidification of castings is typically tested against observed cooling curves and the final grain structures and sizes. Without thermo-solutal convection, equiaxed grain formation is promoted by introduction of heterogeneous substrates into the melt, as grain refiners. With efficient thermo solutal convection, dendrite fragments from the mushy zone can act as an intrinsic source of equiaxed grains and resort to grain refining additions is unnecessary. The mechanisms of dendrite fragmentation and transport of these fragments are briefly considered.
- OSTI ID:
- 227783
- Report Number(s):
- CONF-9509118--; ISBN 0-87339-297-3
- Country of Publication:
- United States
- Language:
- English
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