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Metallurgical and Materials Transactions B

Published in:

01-12-2009

Surface Oxide Film Entrainment Mechanisms in Shape Casting Running Systems

Authors: C. Reilly, N.R. Green, M.R. Jolly

Published in: Metallurgical and Materials Transactions B | Issue 6/2009

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Abstract

During the transient phase of filling a casting running system, surface turbulence can cause the entrainment of oxide films into the bulk liquid. Research has shown that these are detrimental to the material’s integrity. Common mechanisms for this entrainment include returning waves, arising during filling of the runner bar, and plunging jets, found when pouring into a basin. One of these, the returning wave, has been studied in greater depth, using real-time X-ray and process modeling techniques alongside the application of physical principals. It has been concluded that when developed, returning waves cannot attain the more stable and less entraining tranquil flow regime desirable in the running system of castings.

previous article Formation of Nondendritic Primary Aluminum Phase in Hypoeutectic Alloys in Controlled Diffusion Solidification (CDS): A Hypothesis

next article Reconstruction and Quantitative Characterization of Multiphase, Multiscale Three-Dimensional Microstructure of a Cast Al-Si Base Alloy

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Title: Surface Oxide Film Entrainment Mechanisms in Shape Casting Running Systems
Authors: C. Reilly
N.R. Green
M.R. Jolly
Publication date: 01-12-2009
Publisher: Springer US
Published in: Metallurgical and Materials Transactions B / Issue 6/2009
Print ISSN: 1073-5615
Electronic ISSN: 1543-1916
DOI: https://doi.org/10.1007/s11663-009-9262-y

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Other articles of this Issue 6/2009

A Diffusing Runner for Gravity Casting

Formation of Nondendritic Primary Aluminum Phase in Hypoeutectic Alloys in Controlled Diffusion Solidification (CDS): A Hypothesis

Predictive Models for the Velocity of Sound in Liquid Metallic Elements at Their Melting-Point Temperatures

Reconstruction and Quantitative Characterization of Multiphase, Multiscale Three-Dimensional Microstructure of a Cast Al-Si Base Alloy

Experimental Techniques for Investigating Calcium Ferrite Slags at Metallic Copper Saturation and Application to the Systems “Cu2O”-“Fe2O3” and “Cu2O”-CaO at Metallic Copper Saturation

Gas Atomization of Amorphous Aluminum Powder: Part II. Experimental Investigation

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