SYMPOSIA PAPER Published: 01 January 1986

Fundamental Corrosion Characterization of High-Strength Titanium Alloys


Many commercially available and several developmental high-strength titanium alloys were evaluated for application in chloride-containing environments with respect to general, crevice, and stress corrosion resistance. Studies in boiling reducing and oxidizing acid chloride media permitted identification of certain high-strength titanium alloys, containing ≥ 4 weight % molybdenum, which are significantly more resistant than unalloyed titanium with respect to general and crevice attack. Data regression analysis suggests that molybdenum and vanadium impart a significant positive effect on alloy corrosion resistance under reducing acid chloride conditions, whereas aluminum is detrimental. Little effect of metallurgical condition (that is, annealed versus aged) on corrosion behavior of the higher molybdenum-containing alloys was noted. No obvious susceptibility to chloride and sulfide stress corrosion cracking (SCC) was detected utilizing U-bend specimens at 177°C.

Author Information

Schutz, RW
Titanium Metals Corporation of America, Henderson, NV
Grauman, JS
Titanium Metals Corporation of America, Henderson, NV
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Developed by Committee: B10
Pages: 130–142
DOI: 10.1520/STP18387S
ISBN-EB: 978-0-8031-4982-3
ISBN-13: 978-0-8031-0484-6