☆ 4.7 Article

A structure-oriented elucidation for viscous flow of SiO2-MnO-Al2O3 fused submerged arc welding fluxes

JOURNAL OF NON-CRYSTALLINE SOLIDS (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Materials Science, Ceramics

Elucidating the effect of Al2O3/SiO2 mass ratio upon SiO2-MnO-CaF2-Al2O3-based welding fluxes: Structural analysis and thermodynamic evaluation

Zhanjun Wang et al.

Summary: The effect of Al2O3/SiO2 mass ratio on SiO2-MnO-CaF2-Al2O3-based fluxes was investigated, focusing on the morphologies of weld metal and slag shell. It was found that flux viscosity could be significantly reduced by increasing the Al2O3/SiO2 mass ratio from 0.1 to 0.6, with negligible changes thereafter. The compositional dependence of flux behaviors was elucidated through structural analysis using spectroscopic techniques and molecular dynamics simulation.

JOURNAL OF NON-CRYSTALLINE SOLIDS (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

TiO2-Assisted Microstructural Variations in the Weld Metal of EH36 Shipbuilding Steel Subject to High Heat Input Submerged Arc Welding

Yongwu Wu et al.

Summary: Two comparable fluxes, pure CaF2 and CaF2-40 wt pct TiO2, were used to modify shipbuilding steels under high heat input submerged arc welding to investigate the unique functions of TiO2 addition. Compared with pure CaF2, TiO2-containing flux could increase the width of columnar austenite from 119.2 +/- 18.1 to 201.5 +/- 32.2 μm. Furthermore, TiO2 could significantly enhance the fraction of acicular ferrite, primarily through the formation of Ti-bearing inclusions.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2023)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Simulating molten pool features of shipbuilding steel subjected to submerged arc welding

Ming Zhong et al.

Summary: The molten pool features of EH36 shipbuilding steel during the submerged arc welding process have been investigated through simulation. The role of interface tension in welding is revealed, and the evolution of molten pool morphology is understood by comparing different models. Disregarding the interface tension model results in a small weld depth-to-width ratio due to outward flow, while applying the interface tension model leads to a deep penetration morphology with a large weld depth-to-width ratio due to inward flow governed by the Marangoni forces. The simulation results involving the interface tension model have been verified with satisfactory predictability.

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

A Raman and Multinuclear 29Si, 27Al, and 19F NMR Study on the Structural Roles of CaF2 in SiO2-CaO-Al2O3-based Welding Fluxes

Huiyu Tian et al.

Summary: In this study, the structural roles of CaF2 on SiO2-CaO-Al2O3-based welding fluxes were investigated using Raman and magic angle spinning-nuclear magnetic resonance (MAS-NMR) techniques. The results showed that increasing content of CaF2 led to depolymerization of the flux structures, with an increase in the proportion of AlF6 species. This behavior of F offers a theoretical basis for adjusting structural unit mobility and element transfer behaviors during welding processes.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2022)

添加到收藏夹

Article Materials Science, Multidisciplinary

Insight into the Viscosity-Structure Relationship of MnO-SiO2-MgO-Al2O3 Fused Submerged Arc Welding Flux

Zhanjun Wang et al.

Summary: This study investigates the influence of Al2O3 on the viscosity and structure of MnO-SiO2-MgO(-Al2O3) submerged arc welding fluxes. The results show that the viscosity initially decreases and subsequently increases with increasing Al2O3 contents, which is consistent with the variation trend of activation energy. The enhanced polymerization of the flux structure with higher Al2O3 contents is confirmed by the distribution characteristics of various oxygen species. The variation trend is likely due to the competing effects of overall weakened bond energy and enhanced degree of polymerization of the flux structure.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2022)

添加到收藏夹

Article Materials Science, Multidisciplinary

Bubble Evolution Behaviors Induced by CaO-Al2O3-SiO2-CaF2 Fluxes Subjected to High Heat Input Submerged Arc Welding

Zhanjun Wang et al.

Summary: Bubble evolution behaviors have been thoroughly documented in the solidified slags detached from EH36 shipbuilding steel weld metals processed by CaO-Al2O3-SiO2-CaF2 fluxes. The decrease in CaF2 content leads to a decrease in bubble retention tendency, mainly caused by the disappearance of fluorite and cuspidine and the formation of amorphous phases.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2022)

添加到收藏夹

Article Materials Science, Multidisciplinary

Phosphorus Transfer Behaviors Induced by CaF2-TiO2-CaO Fluxes in EH36 Shipbuilding Steel Subject to High Heat Input Submerged Arc Welding

Ming Zhong et al.

Summary: The transfer behavior of phosphorus in submerged arc welding of EH36 shipbuilding steel with CaF2-TiO2-CaO fluxes has been systematically investigated. It was found that dephosphorization can be induced with a CaO content higher than 15.7 mass pct, while phosphorus uptake may occur otherwise. The major driving force enabling phosphorus transfer is largely governed by the activity difference between hypothetical P2O5 in the flux and that equilibrated with the weld metal.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2022)

添加到收藏夹

Article Materials Science, Ceramics

Crystallization behavior of CaF2-TiO2 fluxes geared towards high heat input submerged arc welding

Zhanjun Wang et al.

Summary: This study systematically investigated the crystallization behaviors of CaF2-TiO2 fluxes with varying TiO2 contents. It was found that the TiO2 content of 30 wt.% exhibited the highest barrier to crystallize and the highest capability to achieve the most desired production of amorphous welding fluxes for high heat input applications.

JOURNAL OF NON-CRYSTALLINE SOLIDS (2022)

添加到收藏夹

Article Materials Science, Ceramics

Understanding the solidification and leaching behavior of synthesized Cr-containing stainless steel slags with varying Al2O3/SiO2 mass ratios

Zhanjun Wang et al.

Summary: This study examined the impact of Al2O3/SiO2 mass ratios on the crystallization behavior of stainless steel slags and the leaching stability of Cr-containing slags. The results showed that adding appropriate amounts of Al2O3 could help stabilize Cr in the primary spinel phase, reducing leaching of Cr into the environment.

CERAMICS INTERNATIONAL (2021)

添加到收藏夹

Article Materials Science, Ceramics

Effects of the amphoteric behavior of Al2O3 on the structure and properties of CaO-SiO2-Al2O3 melts by molecular dynamics

Yang Chen et al.

Summary: The study found through molecular dynamics simulation that with the increase of Al2O3 content, the content of tri-coordinate O and high-coordinate Al in CaO-SiO2-Al2O3 melt increased to balance charge. With the addition of Al2O3, the viscosity of the melt increased and reached a maximum at 26 mol% of Al2O3.

JOURNAL OF NON-CRYSTALLINE SOLIDS (2021)

添加到收藏夹

Article Materials Science, Ceramics

Viscosity and structure evolution of CaO-SiO2-MgO-Al2O3-BaO slag with the CaO/SiO2 mass ratio of 0.9

Wenguo Liu et al.

Summary: This study investigated the influence of BaO on the viscosity and structure evolution of CaO-SiO2-MgO-Al2O3-BaO slag. It was found that the addition of BaO could promote the transformation of structural units within the slag, but higher BaO content led to an increased polymerization degree. The results were supported by structural analysis techniques such as FTIR, Raman spectra, and 27Al MAS-NMR.

CERAMICS INTERNATIONAL (2021)

添加到收藏夹

Article Materials Science, Ceramics

Viscosity and structure of MgO-SiO2-based slag melt with varying B2O3 content

Wanlin Wang et al.

CERAMICS INTERNATIONAL (2020)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Structure and Viscosity of CaO-Al2O3-B2O3 Based Mould Fluxes with Varying CaO/Al2O3 Mass Ratios

Jiangling Li et al.

ISIJ INTERNATIONAL (2020)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Viscous characteristics and modelling of CaO-Al2O3-based mould flux with B2O3 as a substitute for CaF2

Wei Yan et al.

IRONMAKING & STEELMAKING (2019)

添加到收藏夹

Article Materials Science, Multidisciplinary

Insight into the Relationship Between Viscosity and Structure of CaO-SiO2-MgO-Al2O3 Molten Slags

Ziwei Chen et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2019)

添加到收藏夹

Article Materials Science, Multidisciplinary

Effect of Al2O3/(B2O3 + Na2O) Ratio on CaO-Al2O3-Based Mold Fluxes: Melting Property, Viscosity, Heat Transfer, and Structure

Jian Yang et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2019)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Effect of Al2O3/SiO2 and CaO/Al2O3 ratios on wettability and structure of CaO-SiO2-Al2O3-based mold flux system

Wan-lin Wang et al.

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2019)

添加到收藏夹

Article Materials Science, Multidisciplinary

Transition of Blast Furnace Slag from Silicate Based to Aluminate Based: Electrical Conductivity

Zhengde Pang et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2019)

添加到收藏夹

Article Materials Science, Ceramics

Investigation of sulfide capacity of aluminosilicate slag based on ionic structure considerations

Sunghee Lee et al.

JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2018)

添加到收藏夹

Article Materials Science, Ceramics

Effect of substituting CaO with BaO on the viscosity and structure of CaO-BaO-SiO2-MgO-Al2O3 slags

Zhanjun Wang et al.

JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2018)

添加到收藏夹

Article Materials Science, Multidisciplinary

Transition of Blast Furnace Slag from Silicate-Based to Aluminate-Based: Structure Evolution by Molecular Dynamics Simulation and Raman Spectroscopy

Dong Liang et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2017)

添加到收藏夹

Article Materials Science, Multidisciplinary

Experimental and Theoretical Studies on the Viscosity-Structure Correlation for High Alumina-Silicate Melts

Trinath Talapaneni et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2017)

添加到收藏夹

Article Materials Science, Ceramics

Effects of the composition on the structure and viscosity of the CaO-SiO2-based mold flux

Jinxing Gao et al.

JOURNAL OF NON-CRYSTALLINE SOLIDS (2016)

添加到收藏夹

Article Materials Science, Multidisciplinary

Effects of MgO and Al2O3 Addition on Redox State of Chromium in CaO-SiO2-CrOx Slag System by XPS Method

Li-jun Wang et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2015)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Viscous Behavior of Alumina Rich Calcium-Silicate Based Mold Fluxes and Its Correlation to the Melt Structure

Gi-Hyun Kim et al.

ISIJ INTERNATIONAL (2013)

添加到收藏夹

Article Materials Science, Ceramics

Effect of FeOt Content and CaO/SiO2 Ratio on Hydrogen Dissolution in CaF2-CaO-SiO2-Based Welding Fluxes

Jun-Yong Park et al.

JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2012)

添加到收藏夹

Article Materials Science, Multidisciplinary

The Viscous Behavior of FeOt-Al2O3-SiO2 Copper Smelting Slags

Hyun-Shik Park et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2011)

添加到收藏夹

Article Materials Science, Multidisciplinary

Effects of flux composition on the element transfer and mechanical properties of weld metal in submerged arc welding

Kook-soo Bang et al.

METALS AND MATERIALS INTERNATIONAL (2009)

添加到收藏夹

Article Geochemistry & Geophysics

Structure of Mg- and Mg/Ca aluminosilicate glasses: 27Al NMR and Raman spectroscopy investigations

Daniel R. Neuville et al.

AMERICAN MINERALOGIST (2008)

添加到收藏夹

Article Materials Science, Multidisciplinary

Amphoteric behavior of alumina in viscous flow and structure of CaO-SiO2 (-MgO)-Al2O3 slags

JH Park et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2004)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.