Phenomenological model of crystallization center nucleation in metal melt during welding under the influence of ultrafine refractory components

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• 作者：G. N. Sokolov ; V. I. Lysak ; I. V. Zorin…
• 关键词：heat ; and wear ; resistant alloys ; refractory chemical compounds ; exogenous modifier ; crystallization centers ; model
• 刊名：Inorganic Materials: Applied Research
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：7
• 期：6
• 页码：884-891
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Inorganic Chemistry; Industrial Chemistry/Chemical Engineering; Materials Science, general;
• 出版者：Pleiades Publishing
• ISSN：2075-115X
• 卷排序：7

文摘

Metallography reveals the correlations between the amount, size, and morphology of ultrafine particles in welding materials (flux-cored and composite wires, coated electrodes, and agglomerated fluxes), as well as the processes of formation of exogenous crystallization centers in the welding pool that facilitate the structure modification and promotion of processing and working properties of deposited metal. The phenomenological model of the nucleation on ultrafine exogenous refractory chemical clusters is developed on the basis of the experimental data and on the existing view of the kinetics of fast physicochemical processes in the welding fire point.