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Investigating the Melting Behavior of a CaO-MnO-SiO2-Al2O3 Flux for Use in Fusion Welding of Low Carbon Steel

EasyChair Preprint no. 9542

5 pagesDate: January 4, 2023

Abstract

CaF2 has been commonly used as a constituent in oxide fluxes for welding of low carbon steel plates, owing to its strong ability to lower the liquidus temperature as well as viscosity of the molten flux. But, the adverse impact of fluorides on the health of the operating personnel and the environment has prompted a worldwide effort to replace CaF2 with more benign constituents. The CaO-MnO-SiO2-Al2O3 compositions, identified in the current work, have shown promise in terms of controlling oxygen transfer and inclusion generation in the molten metal, and can potentially be used as fluxes for welding of low carbon low alloy steels. However, the melting behaviour of the flux needs to be established before recommending its use. In addition to experimental measurements using High Temperature Microscopy (HTM) and Differential Thermal Analysis (DTA), and comparison with simulations from commercially available thermodynamic packages like FactSage™, this work also aims to understand the final composition and potential inclusions that could form in the weld pool using the selected CaO-MnO-SiO2-Al2O3 flux.

Keyphrases: FactSage™, Heating microscopy, Melting behavior analysis, Welding flux

BibTeX entry
BibTeX does not have the right entry for preprints. This is a hack for producing the correct reference:
@Booklet{EasyChair:9542,
  author = {Sree Lakshmi Aditya Gowravaram and Somnath Basu},
  title = {Investigating the Melting Behavior of a CaO-MnO-SiO2-Al2O3 Flux for Use in Fusion Welding of Low Carbon Steel},
  howpublished = {EasyChair Preprint no. 9542},

  year = {EasyChair, 2023}}
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