Examples of assumptions in solidification process analysis for dispersive cast composites
Mirosław Cholewa Politechnika Śląska, Wydział Mechaniczny Technologiczny, Instytut Materiałów Inżynierskich i Biomedycznych, Zakład Odlewnictwa ul. Towarowa 7, 44-100 Gliwice
Quarterly No. 3, 2006 pages 38-44
DOI:
keywords: casting, composite, dispersion, solidification
abstract In this article the main assumptions were described for cast composite properties optimization with use of thermal and morphological characteristics of components. They include component selection, technological parameters steering and use of experimental data correlated with numerical simulation. Proposed verification is connected with need of efficient engineering of high composite properties. Thermo-physical properties and morphological characteristics of reinforcing particles were examined as the most important factors influencing the heat flow kinetics. Some quantities were proposed which bond the fundamental physical properties of the reinforcing particles for experimental planning. In Table 1 the average value of reinforcement thermal properties in solidification range were shown for exemplary components used for wear resistant composite production. Conditional possibility of heat exchange coefficient between the components negligence was indicated. By surface phenomena intensification connected with components relative velocity the particles morphology was exposed. The potential possibilities and limitations of joint experimental studies with numerical simulation were described.