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Library

The history of NACE MR-0175, ISO 15156, and the 1% nickel limit – Timeline

May 21, 2017 by Mariano Iannuzzi

This blog entry presents the development of the NACE MR-0175 in a historical perspective alongside research advancements in physical metallurgy and sulfide stress cracking.

Filed Under: Environmentally Assisted Cracking, Hydrogen Embrittlement, Oil & Gas, OpenLab!, Sulfide Stress Cracking, Timelines Tagged With: iso 15156, sour service, ssc, sulfide stress cracking, timelines

UNS N07718 – Heat treatments and mechanical properties

May 7, 2017 by Mariano Iannuzzi

This post summarizes UNS N07718 tensile, impact toughness, and hardness requirements as mandated in API 6ACRA.

Filed Under: Nickel Alloys, Tables Tagged With: hardness, impact toughness, mechanical properties, na718, nickel alloys, tables, uns n07718

UNS N07718 – Chemical composition

May 7, 2017 by Mariano Iannuzzi

This post presents the chemical composition of the precipitation hardenable nickel-based alloy UNS N07718 according to API 6ACRA.

Filed Under: Nickel Alloys, Tables Tagged With: api 6acra, chemical composition, na718, nickel alloys, tables, uns n07718

Distributed sacrificial anodes, or how to save 500 tons in subsea production systems – Presentation

April 12, 2017 by Mariano Iannuzzi

This presentation gave at CORROSION 2017, introduces the concept of cathodic protection by distributed sacrificial anodes (DSA), a promising new approach to optimizing external corrosion protection..

Filed Under: Cathodic protection, Oil & Gas, Presentations Tagged With: cathodic protection, distributed sacrificial anodes, dsa, oil & gas, subsea production systems

Pre-exposure embrittlement and stress corrosion cracking of magnesium alloy AZ31B in chloride solutions – Publication

April 11, 2017 by Mariano Iannuzzi

In this manuscript, we investigate the influence of hydrogen on the environmentally assisted cracking of the high-strength magnesium alloy AZ31B.​

Filed Under: Environmentally Assisted Cracking, Hydrogen Embrittlement, Journal Articles, Magnesium alloys, Stress corrosion cracking Tagged With: az31b, hydrogen, hydrogen embrittlement, Hydrogen Stress Cracking, Magnesium alloys, publications, Stress Corrosion Cracking

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

March 21, 2017 by Milos Djukic

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

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