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Titlebook: Science and Engineering of Casting Solidification; Doru Michael Stefanescu Book 20021st edition Springer Science+Business Media New York 2

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书目名称Science and Engineering of Casting Solidification
编辑Doru Michael Stefanescu
视频videohttp://file.papertrans.cn/863/862489/862489.mp4
图书封面Titlebook: Science and Engineering of Casting Solidification;  Doru Michael Stefanescu Book 20021st edition Springer Science+Business Media New York 2
描述We come to know about the world in two distinctive ways: by direct perception and by application of rational reasoning which, in its highest form, is mathematical thinking. The belief that the underlying order of the world can be expressed in mathematical form lies at the very heart of science. In other words, we only know what we can describe through mathematical models. Casting of metals has evolved first as witchcraft, to gradually become an art, then a technology, and only recently a science. Many of the processes used in metal casting are still empirical in nature, but many others are deep-rooted in mathematics. In whatever form, casting of metals is an activity fundamental to the very existence of our world, as we know it today. Foundry reports indicate that solidification modeling is not only a cost-effective investment but also a major technical asset. It helps foundries move into markets with more complcx and technically demanding work. The ability to predict internal soundness allows foundries to improve quality and deliveries, and provides the information required to make key manufacturing decisions based on accurate cost estimates before pattern construction even begins
出版日期Book 20021st edition
关键词Approximation; alloy; linear optimization; metal; modeling; numerical analysis; partial differential equat
版次1
doihttps://doi.org/10.1007/978-1-4757-6472-7
isbn_ebook978-1-4757-6472-7
copyrightSpringer Science+Business Media New York 2002
The information of publication is updating

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,Macro-Scale Phenomena — Formation of Macrostructure,roshrinkage. To build a correct model it is first necessary to understand the physics associated with the solidification of castings. At the macro-scale level the casting is a two-phase system comprised of solid and liquid. Nucleation and growth of phases is ignored at this stage.
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Micro-Scale Phenomena and Interface Dynamics,t larger than the atomic scale. This scale is usually called micro-scale (micrometer size). Phenomena occurring at this scale determine the microscopic shape of the interface. The two fundamental phenomena that determine interface morphology are grain nucleation and grain growth.
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Atomic Scale Phenomena: Nucleation and Growth,curring at the atomic scale (nano meter) level. The present understanding of the beginning of formation of solid crystals from their liquid is based on the classical theory of homogeneous nucleation. This theory uses macroscopic concepts and classic thermodynamics to describe the appearance of the first microscopic crystals in the melt.
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https://doi.org/10.1007/978-1-4757-6472-7Approximation; alloy; linear optimization; metal; modeling; numerical analysis; partial differential equat
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