Hariharan K, Iams AD, Zuback JS, Palmer TA, Sridhar N, Alazemi RM, Frankel GS, Schindelholz EJ (2024)
Publication Type: Journal article
Publication year: 2024
Book Volume: 230
Pages Range: 111945
Article Number: 111945
DOI: 10.1016/j.corsci.2024.111945
We report a significant improvement in localized corrosion resistance of Ni-based alloy 625 processed by directed energy deposition (DED) in 7.6 mol/L LiCl at 50 °C. Disparities observed in polarization behavior between DED and wrought alloy 625 are analyzed through compositional and microstructural differences. The exceptional localized corrosion resistance of the DED alloy likely stems from the refinement of secondary phases resultant from the DED process. The prototypical precipitates larger than
1 μm in the wrought material, primarily Nb,Ti-enriched face centered cubic nitrides with the stoichiometry of MN where M = Nb, Ti, Cr, served as pit initiation sites and likely degraded the corrosion resistance.
APA:
Hariharan, K., Iams, A.D., Zuback, J.S., Palmer, T.A., Sridhar, N., Alazemi, R.M.,... Schindelholz, E.J. (2024). Enhanced localized corrosion resistance of Ni-based alloy 625 processed by directed energy deposition additive manufacturing. Corrosion Science, 230, 111945. https://doi.org/10.1016/j.corsci.2024.111945
MLA:
Hariharan, Karthikeyan, et al. "Enhanced localized corrosion resistance of Ni-based alloy 625 processed by directed energy deposition additive manufacturing." Corrosion Science 230 (2024): 111945.
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