1 results listed
In this study, the effect of homogenization heat treatment on the corrosion behaviour and mechanical properties of
Co-Cr (Dental), Co-Cr (Denture) and Ni-Cr (Dental) based casting materials used as dental implant materials was investigated.
Samples prepared as 7 mm in diameter x 10 mm cylindrical in a special silicon-graphite-containing powder mixture for
preventing oxidation were annealed at different times in the range from 0.5 to 3 hours at 1000 ° C. Microstructural
investigations of the samples heat treated and casted was performed on longitudinal and circular sections by Leica DM ILM
model optical light microscope and then hardness measurements were carried out with Brinell hardness tester with 2,5 mm ball
and 187,5 kg load. The corrosion behaviour of the Co-Cr and Ni-Cr based materials formed in the optimum parameters, which
show improvement in the final mechanical properties of microstructure and hardness measurement data, compared with cast
materials, was studied by potentiodynamic polarization test in Hanks liquid. The corrosion damage mechanism was determined
by scanning electron microscopy. The icorr and Ecorr values of the heat-treated materials evaluated after the corrosion made by
the potentiodynamic polarization test method has been increased with respect to that of the casted materials.
International Conference of Advanced Materials and Manufacturing Technologies
ICAMT
Medine Kilinc
Batuhan Ozusta
Gulheser Dogancik
Canan Dursun
Hayrettin AHLATCI
Yunus Türen
Yavuz Sun
Alperen R.B. ÖZSARI