Comparison of the crevice corrosion resistance of Alloys 625 and 22 in concentrated chloride solution from 60 to 95 degrees C [electronic resource]
The effects of electrolyte composition and oxide film age on the crevice corrosion properties of alloys 625 and 22 were studied at temperatures ranging from 60 to 95 C in concentrated chloride electrolytes. Critical potentials were determined using conventional current density thresholds and compari...
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C : Oak Ridge, Tenn. :
United States. Department of Energy. Office of the Assistant Secretary for Defense Programs ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
1999.
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| Summary: | The effects of electrolyte composition and oxide film age on the crevice corrosion properties of alloys 625 and 22 were studied at temperatures ranging from 60 to 95 C in concentrated chloride electrolytes. Critical potentials were determined using conventional current density thresholds and comparisons were made between 625 and 22 on the basis of these critical potentials. Air aged 22 specimens exhibited the highest resistance to crevice corrosion at 95 C in terms of critical crevice potentials, while freshly polished 22 exhibited the lowest resistance. Studies over the entire, temperature range showed that air aged 22 is more resistant to crevice corrosion than air aged 625 as evidenced by higher critical crevice potentials. As the temperature was lowered from 95 to 8O C, critical crevice potentials for 22 either approached or exceeded experimentally determined Cr (Mo, Ni) transpassive potentials. |
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| Item Description: | Published through SciTech Connect. 12/06/1999. "ucrl-jc-137200" Corrosion 2000, 55th Annual Conference & Exposition, Orlando, FL (US), 03/26/2000--03/31/2000. Kehler, B A; Illevbare, G O; Scully, J R. |
| Physical Description: | 1.1 Megabytes pages : digital, PDF file. |