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Localized corrosion

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

Metals – Special Issue “Localized Corrosion of Metals and Alloys”

April 4, 2019 by Mariano Iannuzzi

Together with Prof. Afrooz Barnoush (NTNU), we are preparing a Metals Journal Special issue on localized corrosion. The call for papers is open. Enter to learn more about the scope of the special issue and how to submit your manuscript.

Filed Under: Announcements, Call for papers, Localized corrosion Tagged With: Announcements, journal-articles, localized corrosion, metals

Unusual Correlation between SKPFM and Corrosion of Nickel Aluminum Bronzes – Publication

September 11, 2017 by Mariano Iannuzzi

In this article, we investigate the inverse correlation between Volta potentials measured by SKPFM and the observed localized corrosion morphology of NAB.

Filed Under: Journal Articles, Localized corrosion, Nickel aluminum bronze, Physical Metallurgy Tagged With: afm, atomic force microscopy, localized corrosion, marine corrosion, nab, nickel aluminum bronze, selective dissolution, skpfm, surface potential, Volta potential

Use of the critical acidification model to estimate critical localized corrosion potentials of duplex stainless steels – Publication

February 12, 2017 by Mariano Iannuzzi

Can we use Galvele’s critical acidification model to estimate the localized corrosion resistance of engineering stainless steels?
Short answer: yes; long answer: it is complicated.
Find out more in our recent CORROSION Journal article.

Filed Under: Critical potentials, Journal Articles, Oil & Gas, Stainless steels Tagged With: crevice corrosion, critical acidification model, duplex stainless steels, galvele, localized corrosion, Oil&Gas, pit-like, sdss, seawater, super duplex stainless steels

Effect of Tungsten on the Pitting and Crevice Corrosion Resistance of Type 25Cr Super Duplex Stainless Steels – Publication

February 11, 2017 by Mariano Iannuzzi

Are all super duplex stainless steels alike? Does tungsten additions have an influence on localized corrosion resistance?
Spoiler: it does, and it is remarkable.

Filed Under: Critical potentials, Journal Articles, Library, Localized corrosion, Stainless steels, Temperature Tagged With: cct, CPT, crevice corrosion, critical pitting temperature, duplex stainless steels, long-term exposure, Oil&Gas, pitting corrosion, seawater, tungsten

Materials Selection and Corrosion Control in Subsea Oil and Gas Production – Lecture

November 11, 2016 by Mariano Iannuzzi

This lecture describes various materials selection and corrosion control strategies for subsea oil and gas production systems. A brief discussion on carbon and low alloy steels as well as corrosion resistance alloys is presented alongside fundamental corrosion concepts.

Filed Under: Carbon dioxide, Critical potentials, Environmentally Assisted Cracking, Fundamentals, Lectures, Localized corrosion, Nickel Alloys, NORSOK, Oil & Gas, Physical Metallurgy, Presentations, Stainless steels, Sulfide Stress Cracking Tagged With: corrosion, fundamentals, lectures, materials selection, ntnu, Oil&Gas

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