TPWJ, 2018, #2, 2-6 pages
Calculation model of formation of nonmetallic inclusions of multilayer morphology in weld metal
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue #2, 2018 (March)
L.A. Taraborkin and V.V. Golovko
E.O. Paton Electric Welding Institute of the NAS of Ukraine
11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: email@example.com
The objective of the work was development of a calculation model for practical prediction of the kinetics of formation of multicomponent endogenous nonmetallic inclusions in the weld metal. The proposed mathematical model is a nonstandard nonlinear boundary problem for a system of diffusion equations with the specific condition on the moving melt-inclusion interphase, and it allows for the kinetics and heterogeneity of the process under the conditions of the real thermal cycle of welding. The calculation program developed as a computer realization of the constructed model allows evaluating in a computer experiment the size and composition of endogenous nonmetallic oxide inclusions, depending on concentration and thermal conditions in the weld pool. 10 Ref., 2 Figures.
arc welding, weld pool, nonmetallic inclusions, mathematical model, prediction
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