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sigma phase

The Role of Tungsten on the Phase Transformation Kinetics and its Correlation with the Localized Corrosion Resistance of 25Cr Super Duplex Stainless Steels

May 29, 2020 by Mariano Iannuzzi

This investigation demonstrated 2.1 wt% tungsten drastically reduced the kinetics of tertiary phase precipitation in 25Cr super duplex stainless steels. The slow kinetics resulted in a better overall pitting corrosion resistance.

Filed Under: Corrosion Resistant Alloys, Critical potentials, Journal Articles, Library, Localized corrosion, Oil & Gas, Physical Metallurgy, Stainless steels, Temperature, Uncategorized Tagged With: chi phase, Oil&Gas, pitting corrosion, sigma phase, super duplex stainless steels

Use of electrochemical techniques to determine the effect of Sigma phase (σ-phase) precipitation on a 25Cr Super Duplex Stainless Steel — Presentation

February 22, 2015 by Mariano Iannuzzi

This work was presented at NACE International CORROSION 2015 “Mechanisms of Localized Corrosion” symposium.
A link to the final presentation is included.

Filed Under: Conferences, Critical potentials, Localized corrosion, Presentations Tagged With: CORROSION/15, CRA, critical pitting temperature, localized corrosion, materials selection, Oil&Gas, PREN, sdss, seawater, sensitization, sigma phase, stainless steels, Subsea

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