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Physical Metallurgy

Effect of nickel on hydrogen permeation in ferritic/pearlitic low alloy steels – Publication.

April 26, 2018 by Mariano Iannuzzi Leave a Comment

This is the first of a series of articles on the effect of nickel on the hydrogen embrittlement resistance of low alloy steels. In this paper, we investigated how nickel in solid solution in the ferrite phase affected hydrogen permeation.

Filed Under: Hydrogen Embrittlement, Journal Articles, Physical Metallurgy, Sulfide Stress Cracking Tagged With: hydrogen, hydrogen embrittlement, iso 15156, low alloy steels, permeation

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

September 11, 2017 by Mariano Iannuzzi Leave a Comment

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

Hydrogen Embrittlement of Industrial Components: Prediction, Prevention, and Models – Publication

March 21, 2017 by Milos Djukic Leave a Comment

Hydrogen embrittlement is a common, dangerous, and poorly understood cause of failure in many metal alloys. This article presents a model based on the correlation of mechanical properties to scanning electron microscopy fractography analysis of fracture surfaces in the presence of simultaneously active hydrogen embrittlement micro-mechanisms.

Filed Under: Hydrogen Embrittlement, Journal Articles, Low alloy steels, Oil & Gas, Physical Metallurgy, Uncategorized Tagged With: carbon steel, hydrogen embrittlement, industrial components, journal-articles, pipelines, publications

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

November 11, 2016 by Mariano Iannuzzi Leave a Comment

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

Effect of nickel on the phase transformation kinetics of low alloy steels

August 24, 2014 by Mariano Iannuzzi Leave a Comment

This posts summarizes the main effects of nickel on the phase transformation of kinetics of low alloy steels.

Filed Under: Low alloy steels, Physical Metallurgy, Sulfide Stress Cracking Tagged With: low alloy steels, materials selection, metallurgy, nickel alloy steels, Oil&Gas, phase transformation, ssc, ttt

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By Mariano Iannuzzi

Professor | Chevron Woodside Chair in Corrosion
Director | Curtin Corrosion Centre
Curtin University
Adjunct Professor
Norwegian University of Science and Technology (NTNU) Read More…

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