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Report No.
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Effect of interaction between carbon steel and simulated glass on glass dissolution behavior

Goto, Takahiro*; Matsubara, Ryuta*; Hamamoto, Takafumi*; Fujisaki, Kiyoshi*; Mitsui, Seiichiro  ; Taniguchi, Naoki 

For the purpose of improvement of long-term glass corrosion model, we conducted immersion tests with specimens of carbon steel and simulated waste glass at 50$$^{circ}$$C and 80$$^{circ}$$C under nitrogen gas atmosphere. We also conducted control immersion tests with a specimen of carbon steel or simulated waste glass under the same conditions. After the immersion tests, we determined glass corrosion rates and secondary phases on the surface of carbon steel specimen. Glass corrosion rates for the immersion tests with specimens of carbon steel and simulated waste glass were three times larger than those for the control immersion tests with simulated waste glass specimen. With X-ray diffraction, several peaks associated with an iron silicate mineral were identified. This observation is consistent with the results of geochemical calculation based on solution data and published study using carbon steel and simulated waste glass.

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