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Materials ScienceThe Effect of Tensile Strain on Corrosion of Dental Amalgam
D.F. Averette
School of Chemical Engineering/Metallurgy Program, Georgia Institute of Teehnology, Atlanta, Georgia 30332
M. Marek
School of Chemical Engineering/Metallurgy Program, Georgia Institute of Teehnology, Atlanta, Georgia 30332
In vitro corrosion of two low-copper and three high-copper deratal amalgams was examined using stressed and unstressed specimens. Stress was applied in tension; anodic polarization curves and polarization resistance were determined. In stressed condition, the passive current density was higher, and polarizatfon resistance was lower. The changes are attributed mainly to the fracture of passive films by creep strain.
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Journal of Dental Research, Vol. 62, No. 7,
842-845 (1983)
DOI: 10.1177/00220345830620071801
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