Results 231 to 240 of about 113,242 (268)
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Current Opinion in Solid State and Materials Science, 1998
Abstract The field of solidification modelling covers micro- and macrosegregation, microstructure and defect formation, and thermomechanical aspects which include the formation of hot tears. Simulations are becoming increasingly more sophisticated and accurate as a result of refined physical models, improved thermodynamic, thermophysical and ...
Rappaz, M., Rettenmayr, M.
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Abstract The field of solidification modelling covers micro- and macrosegregation, microstructure and defect formation, and thermomechanical aspects which include the formation of hot tears. Simulations are becoming increasingly more sophisticated and accurate as a result of refined physical models, improved thermodynamic, thermophysical and ...
Rappaz, M., Rettenmayr, M.
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Materials Science and Engineering, 1988
Abstract Most currently used rapid solidification techniques (such as melt spinning, melt extraction, melt drag, planar flow casting, double anvil, hammer and anvil and splat quenching) are simple variants on a common theme. Molten metal is brought into contact with a cool substrate, usually metallic. The molten metal forms a bond with the substrate,
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Abstract Most currently used rapid solidification techniques (such as melt spinning, melt extraction, melt drag, planar flow casting, double anvil, hammer and anvil and splat quenching) are simple variants on a common theme. Molten metal is brought into contact with a cool substrate, usually metallic. The molten metal forms a bond with the substrate,
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Fluctuations in solidification
Physical Review E, 1993We present an analytical treatment of (i) the incorporation of thermal noise in the basic continuum models of solidification, (ii) fluctuations about nonequilibrium steady states, and (iii) the amplification of noise near the onset of morphological instability.
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Microsegregation in cellular solidification
Metallurgical and Materials Transactions A, 1994Microsegregation in a binary alloy solidified in the form of deep cells is predicted using a simplified finite difference model. The model accounts for solid state diffusion and for flow of liquid between cells driven by solidification shrinkage. Cell tip undercooling is predicted using the expression originally derived by Bower et al.
Dean, N. F. +2 more
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Solidification Process Design With Desired Solidification Rates
Inverse Problems in Mechanics, 1994Abstract This paper presents a design methodology for steady state solidification processes in order to achieve desired solidification rates. The solidification rate is defined as a time rate at which a material transforms its state from liquid to solid.
Yimin Ruan, Joshua C. Liu, Owen Richmond
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2007
Abstract Engineering metals undergo many transformations in the course of production, none more critical than those that occur during solidification. This chapter discusses the process of solidification and its effects on the structure and properties of cast metals.
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Abstract Engineering metals undergo many transformations in the course of production, none more critical than those that occur during solidification. This chapter discusses the process of solidification and its effects on the structure and properties of cast metals.
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Solidification modes during additive manufacturing of steel revealed by high-speed X-ray diffraction
Acta Materialia, 2023Niklas Hollander Pettersson +2 more
exaly