Can we use the ASTM G48 test to establish the maximum allowable temperature of a metal or alloy in an oxidizing environment like seawater?
This post discusses how the ferric chloride electrolyte of the ASTM G48 test compares with other oxidizing environments such as seawater.
Guide to corrosion resistant nickel alloys
Very interesting article by Haynes Int. on nickel alloys: LINK.
Hydrogen diffusion control during stress corrosion cracking of magnesium alloy AZ31B in chloride solutions – Abstract
SCC of AZ31B alloy was studied in NaCl solutions at different potentials and chloride concentrations using the slow strain rate technique. A combination of pre-exposure tests followed by immediate straining or straining after a dry air exposure delay helped to weight the relative importance of anodic damage accumulation versus increased hydrogen charging during open-circuit potential pre-exposure. The dependence of ductility with pre-exposure time and the fracture surface of embrittled samples suggest that hydrogen embrittlement of AZ31B was controlled by hydrogen diffusion.
The stress corrosion cracking bug
An insightful and current 1935 comment on stress corrosion cracking of stainless steels by Dr. Horace W. Gillett.
Selecting corrosion resistant alloys for seawater applications
This abstract has been submitted to the upcoming NACE International CORROSION/14 Research in Progress Session on Passivity and Localized Corrosion. By: Mariano Iannuzzi Coauthors: Mauricio Rincón-Ortiz (first author), Mariano Kappes, Martín A. Rodríguez, Ricardo Carranza, and Raúl Rebak. In the offshore oil and gas industry, materials selection philosophies are traditionally based on the International Standard Organization (ISO) 21457 […]
Hello world!
This is my first test post…. so, welcome everyone!