THEORETICAL APPROACH FOR DETERMINING AN EMISSIVITY OF SOLID MATERIALS AND ITS COMPARISON WITH EXPERIMENTAL STUDIES ON THE EXAMPLE OF 316L POWDER STEEL
Oleksandr Vasilevskyi
om.vasilevskyi@gmail.comThe University of Texas at Austin, Walker Department of Mechanical Engineering (United States)
https://orcid.org/0000-0002-8618-0377
Michael Cullinan
The University of Texas at Austin, Walker Department of Mechanical Engineering (United States)
Jared Allison
The University of Texas at Austin, Walker Department of Mechanical Engineering (United States)
Abstract
The work used Maxwell's electromagnetic theory to quantitatively describe the emissivity of solid materials through electrical resistivity and temperature. An equation is proposed for recalculating the emissivity of smooth surfaces into powdery or rough surfaces. The obtained theoretical characteristics of the change in the emissivity of 316L powder steel were compared with experimental ones. As a result of the comparison, it was established that the experimental results obtained correlate with theoretical calculations and do not go beyond the limits of the expanded uncertainty of measurement.
Keywords:
additive manufacturing, the emissivity of the smooth surface, Maxwell's electromagnetic theory, the emissivity of the rough surface, 316L powder steel, machine learningReferences
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Authors
Oleksandr Vasilevskyiom.vasilevskyi@gmail.com
The University of Texas at Austin, Walker Department of Mechanical Engineering United States
https://orcid.org/0000-0002-8618-0377
Authors
Michael CullinanThe University of Texas at Austin, Walker Department of Mechanical Engineering United States
Authors
Jared AllisonThe University of Texas at Austin, Walker Department of Mechanical Engineering United States
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