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Laser Surface Treatment to Improve Mechanical Properties of Cast Titanium by Ikuya Watanabe; Matthew McBride; Phillip Newton; Kenneth S. Kurtz is a Dentistry article available to read on EtoBox.

What is Laser Surface Treatment to Improve Mechanical Properties of Cast Titanium about?

## Objective: The aim of this study was to investigate the effect of laser surface treatment on the mechanical properties of cast titanium and to compare with those of the co-cr alloy. ## Methods: Dumbbell-shaped cast specimens were prepared for commercially pure titanium (grade 2) and co-cr alloy. the cast titanium specimens were laser-treated on the surface using a dental nd:yag laser machine at 240 v and 300 v. after laser treatment, tensile testing was conducted to obtain the tensile strength, percent elongation and modulus of elasticity. the hardness depth profile was made from the cast subsurface (25 microm) to 1500 microm in depth using the cross-sections of the cast rods with the same diameter as the dumbbell. the data were statistically analyzed by anova/post hoc tests (p<0.05). ## Results: The highest tensile strength was obtained for the titanium specimens laser-treated with 300 v followed by the 240 v and the control specimens. the laser-treated titanium specimens with 300 v showed a tensile strength equivalent to the co-cr alloy. although the highest modulus of elasticity was found for the specimens laser-treated with 240 v, there were no significant differences in ela

Who reads Laser Surface Treatment to Improve Mechanical Properties of Cast Titanium?

Author

Ikuya Watanabe; Matthew McBride; Phillip Newton; Kenneth S. Kurtz

Publisher

Elsevier BV

Published

2009

Language

EN

Field

Dentistry (Health Sciences)