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The paper presents the data of optical microscopy of aluminum cast alloy ER4043 fabricated by wire-feed electron-beam additive manufacturing (WEBAM) and samples of composite material made by simultaneous double-wire feed EBAM with the introduction of 5% and 10% of the nickel alloy Udimet-500. The data obtained testify to the complex and heterogeneous structure organization in composite materials made of dissimilar metals with different melting temperatures and densities. The data indicate the presence of non-melting nickel alloy on one side and overheating of aluminum alloy on the other side. [ABSTRACT FROM AUTHOR]

The numerical simulation method is widely used for a suppressed time, material, and cost purpose of the research area in the recent digitalization era. In casting process simulation, the parameters are needed as a real condition representative, determining metallurgical characteristics within a multiphase flow. The initial and essential step in determining it is that varying the control temperature is pre-heat (30°C, 200°C, and 400°C) and pouring temperature (675°C, 725°C, and 775°C). There are used so that the characteristic of casting design can be identified, and defects are avoided. In this study, an investigation will be carried out to control temperature towards mold filling and solidification process on aluminum base alloy piston through gravity permanent casting. As a result, this research revealed that variable changes influence the mold filling and solidification process. Even more, the presence of progressive solidification is detected. [ABSTRACT FROM AUTHOR]