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What is it about?

This article includes a comprehensive investigation comparing the influence of tungsten on pitting and crevice corrosion of commercial SDSS. We studied UNS S32750 (a low-W variation) and UNS S39274, an SDSS with about 2 wt% W. We found that 2 wt% W dramatically improved localized corrosion resistance.

Why is it important?

In the oil and gas industry, all standards treat the various super duplex stainless steels (SDSS) as being equivalent or interchangeable. However, we have shown that high-W SDSS have a much improved localized corrosion resistance in the solution annealed condition.

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The following have contributed to this page:
Mariano Iannuzzi
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