The Library
Probing viscosity and structural variations in CaF2–SiO2–MnO welding fluxes
Tools
Zhang, Yanyun, Wang, Zhanjun, Zhang, Jiawen, Li, Zushu, Basu, Somnath and Wang, Cong (2022) Probing viscosity and structural variations in CaF2–SiO2–MnO welding fluxes. Metallurgical and Materials Transactions B, 53 . pp. 2814-2823. doi:10.1007/s11663-022-02566-7 ISSN 1073-5615.
|
PDF
WRAP-Probing-viscosity-structural-variations-CaF2-SiO2-MnO-welding-fluxes-2022.pdf - Accepted Version - Requires a PDF viewer. Download (938Kb) | Preview |
Official URL: https://doi.org/10.1007/s11663-022-02566-7
Abstract
Recent demand on welding fluxes for high-strength low-alloy steel grades has necessitated the development of CaF2-free fluxes towards high heat input applications. To meet such requirements, a flux design strategy has been postulated by varying MnO/(CaF2 + MnO) mass ratio in the CaF2–SiO2–MnO flux system. The effect of MnO substitution for CaF2 on the flux viscosity and structure has been investigated, and a quantitative relationship between viscosity and structural units has been put forward. In addition, it has been suggested that the degree of polymerization (DOP) of silicate network is reduced with increasing MnO/(CaF2 + MnO) mass ratio, indicating MnO plays the role of network-breaker. The spectra of F1s and 19F prove that F− predominantly bonds with Ca2+ rather than Si4+, revealing CaF2 acts as a diluent and does not effectively depolymerize the silicate network. Linear correlations can be obtained between the logarithm viscosity and the average non-bridging oxygen per silicon atom (NBO/Si), which can potentially be used as a DOP index to quantify the impact of silicate structure on the viscosity of the flux.
Item Type: | Journal Article | |||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TN Mining engineering. Metallurgy T Technology > TS Manufactures |
|||||||||||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Flux (Metallurgy), Flux (Metallurgy) -- Viscosity, Submerged arc welding, Calcium fluoride, Silica, Manganese oxides | |||||||||||||||||||||||||||
Journal or Publication Title: | Metallurgical and Materials Transactions B | |||||||||||||||||||||||||||
Publisher: | Springer New York LLC | |||||||||||||||||||||||||||
ISSN: | 1073-5615 | |||||||||||||||||||||||||||
Official Date: | October 2022 | |||||||||||||||||||||||||||
Dates: |
|
|||||||||||||||||||||||||||
Volume: | 53 | |||||||||||||||||||||||||||
Page Range: | pp. 2814-2823 | |||||||||||||||||||||||||||
DOI: | 10.1007/s11663-022-02566-7 | |||||||||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||||||||
Reuse Statement (publisher, data, author rights): | “This version of the article has been accepted for publication, after peer review but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s11663-022-02566-7 Use of this Accepted Version is subject to the publisher’s Accepted Manuscript terms of use https://www.springernature.com/gp/open-research/policies/acceptedmanuscript-terms”. | |||||||||||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||||||||||||||
Date of first compliant deposit: | 13 July 2022 | |||||||||||||||||||||||||||
Date of first compliant Open Access: | 7 June 2023 | |||||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year