Abstract | STATEMENT OF PROBLEM: PURPOSE: This study evaluated, compared, and analyzed the corrosion- fatigue life of commercially pure titanium and Ti-6Al-4V alloy in different storage environments. MATERIAL AND METHODS: For each metal, 33 dumbbell rods, 2.3 mm in diameter at the central segment, were cast in the Rematitan system. Corrosion- fatigue strength test was carried out through a universal testing machine with a load 30% lower than the 0.2% offset yield strength and a combined influence of different environments: in air at room temperature, with synthetic saliva, and with fluoride synthetic saliva. After failure, the number of cycles were recorded, and fracture surfaces were examined with an SEM. RESULTS: ANOVA and Tukey's multiple comparison test indicated that Ti-6Al-4V alloy achieved 21,269 cycles (SD = 8,355) against 19,157 cycles (SD = 3, 624) for the commercially pure Ti. There were no significant differences between either metal in the corrosion- fatigue life for dry specimens, but when the solutions were present, the fatigue life was significantly reduced, probably because of the production of corrosion pits caused by superficial reactions.
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Authors | R A Zavanelli, G E Pessanha Henriques, I Ferreira, J M De Almeida Rollo |
Journal | The Journal of prosthetic dentistry
(J Prosthet Dent)
Vol. 84
Issue 3
Pg. 274-9
(Sep 2000)
ISSN: 0022-3913 [Print] United States |
PMID | 11005899
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Alloys
- Dental Alloys
- Saliva, Artificial
- titanium alloy (TiAl6V4)
- Titanium
- Fluorides
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Topics |
- Alloys
- Analysis of Variance
- Corrosion
- Dental Alloys
(chemistry)
- Dental Casting Technique
- Drug Storage
- Equipment Failure Analysis
- Fluorides
- Materials Testing
- Saliva, Artificial
- Statistics, Nonparametric
- Titanium
(chemistry)
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