Phase-field modeling and Experimental investigation for rapid solidification in wire and arc additive manufacturing

Wang, Fuchen; Chen, Weipeng; Wang, Dong; Hou, Hua; Zhao, Yuhong

doi:10.1016/j.jmrt.2024.01.021

Cited by 4 publications

(1 citation statement)

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“…Metal additive manufacturing involves multiple physical processes such as heat and mass transfer, phase transformation, grain growth, and molten metal flow. The complexity of the influencing factors in microstructure evolution poses challenges for alloy design and performance control in additive manufacturing [125][126][127]. The phase-field method utilizes order parameters to describe various complex microstructures, including gas/liquid/solid phases, grain shapes/orientations, and can directly incorporate field variables describing various physical processes (such as stress/strain, melt velocity, temperature, concentration, electric/magnetic fields, etc.).…”

Section: Grand Potential Phase-field Sintering Modelmentioning

confidence: 99%

Phase-Field Simulation of Sintering Process: A Review

Xue,

2024

CMES

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Sintering, a well-established technique in powder metallurgy, plays a critical role in the processing of high melting point materials. A comprehensive understanding of structural changes during the sintering process is essential for effective product assessment. The phase-field method stands out for its unique ability to simulate these structural transformations. Despite its widespread application, there is a notable absence of literature reviews focused on its usage in sintering simulations. Therefore, this paper addresses this gap by reviewing the latest advancements in phase-field sintering models, covering approaches based on energy, grand potential, and entropy increase. The characteristics of various models are extensively discussed, with a specific emphasis on energy-based models incorporating considerations such as interface energy anisotropy, tensor-form diffusion mechanisms, and various forms of rigid particle motion during sintering. Furthermore, the paper offers a concise summary of phase-field sintering models that integrate with other physical fields, including stress/strain fields, viscous flow, temperature field, and external electric fields. In conclusion, the paper provides a succinct overview of the entire content and delineates potential avenues for future research.

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Section: Grand Potential Phase-field Sintering Modelmentioning

confidence: 99%