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Thermal and mechanical effects on the corrosion behavior of Ti-6Al-4V alloy

Journal Article · · J. Electrochem. Soc., v. 120, no. 12, pp. 1632-1637
DOI:https://doi.org/10.1149/1.2403319· OSTI ID:4381790

Anodic and cathodic polarization behavior of Ti--6Al-4V alloy were determined by potentiostatic and galvanostatic techniques in deaerated 1, 5, and 10N sulfuric acid solutions. In the active region, metallurgical processing, which included cold rolling and thermal treatment, had no effect on the corrosion behavior. It is suggestcd that a titanium hydride film exists on the titanium alloy surface. In the passive region, plastic deformation, due to cold rolling, did increase the passive current density; whereas crystallographic texturing did not have an effect. The introduction of an alpha -phase due to thermal treatment produced an additional pcak in the passive region. (auth)

Research Organization:
Aerospace Corp., Los Angeles
Sponsoring Organization:
USDOE
NSA Number:
NSA-29-008259
OSTI ID:
4381790
Journal Information:
J. Electrochem. Soc., v. 120, no. 12, pp. 1632-1637, Journal Name: J. Electrochem. Soc., v. 120, no. 12, pp. 1632-1637; ISSN JESOA
Country of Publication:
Country unknown/Code not available
Language:
English