Title : ( Hot corrosion of Inconel 625 wrought alloy and weld overlay on carbon steel by gas metal arc welding in 47 PbSO4-23 ZnO-13 Pb3O4-7 PbCl2-5 CdO-5 Fe2O3 molten salt mixture )
Authors: Ehsan Mohammadi Zahrani , Akram Alfantazi ,
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Abstract
The hot corrosion resistance of the wrought alloy 625 and the alloy 625 GMAW cladding was investigated in the molten salt mixture of 47 PbSO4-23 ZnO-13 Pb3O4-7 PbCl2-x CdO-(10-x) Fe2O3 [x =5] (wt.%) at 600, 700, and 800 oC, utilizing EIS, OCP, potentiodynamic polarization, weight-loss measurement, SEM/EDX, ICP/AAS, and XRD techniques. At 600 oC, the hot corrosion resistance of the wrought alloy 625 outperformed the alloy 625 weld cladding due to the formation of a (Cr, Ni, O)-rich layer with 2.2 ± 1.3 μm in thickness. Anodic and cathodic reactions on polarized working electrodes were under mass-transfer control.
Keywords
Welding; Hot corrosion; Molten salts; Superalloys; EIS; SEM
@article{paperid:1083924,
author = {Mohammadi Zahrani, Ehsan and Akram Alfantazi},
title = {Hot corrosion of Inconel 625 wrought alloy and weld overlay on carbon steel by gas metal arc welding in 47 PbSO4-23 ZnO-13 Pb3O4-7 PbCl2-5 CdO-5 Fe2O3 molten salt mixture},
journal = {Corrosion Science},
year = {2021},
volume = {183},
month = {May},
issn = {0010-938X},
keywords = {Welding; Hot corrosion; Molten salts; Superalloys; EIS; SEM},
}
%0 Journal Article
%T Hot corrosion of Inconel 625 wrought alloy and weld overlay on carbon steel by gas metal arc welding in 47 PbSO4-23 ZnO-13 Pb3O4-7 PbCl2-5 CdO-5 Fe2O3 molten salt mixture
%A Mohammadi Zahrani, Ehsan
%A Akram Alfantazi
%J Corrosion Science
%@ 0010-938X
%D 2021
