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Record Details

Record 85 of 1274
Convection in grain refining
Author and Affiliation:
Flemings, M. C.(Massachusetts Inst. of Tech., Cambridge, MA, United States)
Szekely, J.(Massachusetts Inst. of Tech., Cambridge, MA, United States)
Abstract: The relationship between fluid flow phenomena, nucleation, and grain refinement in solidifying metals both in the presence and in the absence of a gravitational field was investigated. The reduction of grain size in hard-to-process melts; the effects of undercooling on structure in solidification processes, including rapid solidification processing; and control of this undercooling to improve structures of solidified melts are considered. Grain refining and supercooling thermal modeling of the solidification process, and heat and fluid flow phenomena in the levitated metal droplets are described.
Publication Date: Jun 28, 1982
Document ID:
19820019507
(Acquired Nov 13, 1995)
Accession Number: 82N27383
Subject Category: METALLIC MATERIALS
Document Type: Technical Report
Publication Information: The Mater. Process. Res. Base of the Mater. Process. Center; p 23-46
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Massachusetts Inst. of Tech.; Cambridge, MA, United States
Description: 24p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CONVECTION; DIRECTIONAL SOLIDIFICATION (CRYSTALS); FLUID FLOW; GRAIN BOUNDARIES; METALS; NUCLEATION; COOLING; CRYSTAL STRUCTURE; GRAVITATIONAL EFFECTS; HEAT TRANSFER; MATHEMATICAL MODELS; MELTS (CRYSTAL GROWTH)
Imprint And Other Notes: In its The Mater. Process. Res. Base of the Mater. Process. Center p 23-46 (SEE N82-27382 18-23)
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