SYMPOSIA PAPER Published: 01 January 1972

Intergranular Corrosion in Iron and Nickel Base Alloys


Intergranular corrosion in stainless steels (austenitic, ferritic, and two phase) and nickel base corrosion resistant alloys (nickel-chromium-iron, nickel-chromium-molybdenum, and nickel-molybdenum) is reviewed. Practical aspects discussed include thermal treatments producing susceptibility, media that cause attack, influence of alloy composition, and prevention methods. The currently most plausible mechanisms are also outlined. Test methods, particularly the standard methods for quality control, are dealt with as well as techniques used to simulate the thermal effects of welding. The relationships between intergranular attack and other forms of localized corrosion are noted.

Author Information

Henthorne, M
Carpenter Technology Corp., Reading, Pa.
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Developed by Committee: G01
Pages: 66–119
DOI: 10.1520/STP35416S
ISBN-EB: 978-0-8031-4617-4
ISBN-13: 978-0-8031-0110-4