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This article reviews the fundamental solidification concepts for understanding microstructural evolution in fusion welds. The common concepts, namely, nucleation, competitive grain growth, constitutional supercooling, solute redistribution, and rapid solidification, depend on the solidification parameters during welding, are discussed. The article discusses important solidification parameters, including temperature gradient, solid/liquid interface growth rate, and cooling rate.

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John N. DuPont, 2011. "Fundamentals of Weld Solidification", Welding Fundamentals and Processes, T. Lienert, T. Siewert, S. Babu, V. Acoff

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