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Microstructural and topographical characterization of different surface treatments of a surgical titanium alloy for
Leila Abdul Carimo Marino1, Tatiana Miranda Deliberador, João César Zielak
1Positivo University, Curitiba, Paraná, Brazil.
Objective:
To perform a topographical characterization of a titanium alloy subjected to different surface treatments using roughness evaluation, scanning electron microscopy, and atomic force microscopy.
Materials And Methods:
For each group, 6 discs of a titanium alloy had their surfaces modified by 4 treatments. All surfaces were blasted with Al2O3, cleaned, and the specimens were divided into 4 groups: G1, immersion in a standardized acid solution (SAS) (control group); G2, immersion in acetone, followed by immersion in SAS; G3, immersion in acetone, followed by immersion in SAS, followed by immersion in nitric acid; G4, immersion in acetone, followed by immersion in SAS, followed by immersion in sulfuric acid. Roughness parameters were determined with a roughness tester, and data were statistically analyzed using analysis of variance and Tukey tests (α = 5%).
Results:
Regarding the roughness parameters, no significant differences were found. Scanning electron microscopy and atomic force microscopy showed irregular surfaces with the presence of particles uniformly deposited on the surfaces.
Conclusion:
A similar roughness pattern was created for all the groups. The images and topographic profiles indicated that all the groups showed high levels of roughness.
