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Numerical models of solidification and their application in metal and ceramic technology

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F16%3A86099985" target="_blank" >RIV/61989100:27360/16:86099985 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216305:26210/16:PU121212

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Numerical models of solidification and their application in metal and ceramic technology

  • Original language description

    Solidification (crystallization) phenomena play a major role in such diverse operations as casting, crystal growth, and welding. Solidification proceeds at various rates, which are sometimes far from equilibrium. Thus, the casting microstructure obtained is generally not homogeneous and gives rise to variations in composition with position at both small and large scales. Solute segregation is important because it leads to non-equilibrium phases, cracks, and other problems, which lower the mechanical properties of the final product. Segregation is classified, according to its scale, as macro-segregation or micro-segregation.. Among many other things, it depends on an accurate prediction of micro-segregation. Micro-segregation refers to a composition variation within the columnar or equiaxed dendritic solidification structure, which has a length scale of the order of only few micrometers. It is usual to characterize the extent of micro-segregation using a ranking scheme of randomly sampled electron micro-analysis data. Thermodynamic quantities are often calculated from measurements of the as-cast segregation profile, in particular, the partition coefficient. These thermodynamic quantities are used for alloy development programs and in casting process models both as input properties and for validation. A well-founded technique is thus imperative for evaluating compositional data from X-ray microanalysis. Commercially available softwares are not able to predict the chemical heterogeneity of continuously cast material components of multi-component alloys. This publication shows the application of the commercial and the two original models of the simulation of temperature field castings and continuously cast slabs in various applications metallurgical and ceramic technology. The third applied original model is the model of chemical heterogeneity of elements, allowing the description and measurement of the dendritic main elements and impurities in solidifying castings.

  • Czech name

  • Czech description

Classification

  • Type

    B - Specialist book

  • CEP classification

    JG - Metallurgy, metal materials

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • ISBN

    978-80-214-5377-7

  • Number of pages

    161

  • Publisher name

    Brno University of Technology

  • Place of publication

    Brno

  • UT code for WoS book