Phase change heat transfer analysis of anisotropic structures with moving heat source using the element-free Galerkin method

Zhang, Jianping; Xu, Chang; Hu, Huiyao; Zhang, Dabing; Gong, Shengrong; Peng, Deqi; Wu, Shuying

doi:10.1080/10407790.2023.2208734

Cited by 1 publication

(1 citation statement)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As is well known, this approach mainly takes into consideration the chemical interactions during the SAW process [28,29]. However, physical interactions during the SAW process can also have an impact on the transition behavior of elements [30][31][32]. For instance, oxide inclusions may be entrapped in the molten droplets or WM and , elements may undergo redistribution within the metal during the solidification process, thereby influencing the final bulk composition [18,19,21,24].…”

Section: Accuracy Of Quantitative Methodsmentioning

confidence: 99%

Advancing Methodologies for Elemental Transfer Quantification in The Submerged Arc Welding Process: A Case Study of CaO-SiO2-MnO Flux

Fan,

Zhang,

Zhang

2024

Processes

View full text Add to dashboard Cite

In submerged arc welding, evaluating elemental transfer behaviors is critical for selecting and designing welding materials. Accurate assessment of O, Si, and Mn transfer behavior is essential for ensuring process quality, particularly when silicon-manganese fluxes are applied. Traditional quantification methods, however, focus only on chemical reactions in the weld pool zone, potentially overlooking the cross-zone elemental transfer behavior and leading to significant predictive inaccuracies. This study investigates the CaO-SiO2-MnO flux, a prevalent silicon-manganese flux, focusing on O, Si, and Mn, which exhibit notable transfer behaviors of O, Si, and Mn. By employing a multi-zone approach and integrating various scientific principles, the research aims to improve the accuracy of predicting elemental transfer behaviors and deepen the understanding of the metallurgical processes in submerged arc welding when silicon-manganese fluxes are employed. The study proposes strategic enhancements to traditional quantification methods, which may offer valuable insights for the improvement of industry standards. This study demonstrates that considering only the local thermodynamic equilibrium of the weld pool zone when quantifying the transfer behavior of elements may lead to predictive errors, especially for easily evaporating metallic elements. By incorporating a cross-zone assessment for submerged arc welding process, i.e., introducing new quantifying parameters (Δd and Δw), the predictive accuracy of the transfer behavior of elements and their cross-zone actions can be enhanced.

show abstract