![]() ![]() D., 1997, 'Corrosion Atlas,' Elsevier, 3rd ed., p. If the degraded 12Cr alloy steel and non-degraded one were compared with fatigue characteristics, Any differences were not found regardless of temperature and degradation period. But, it was not susceptible in sulfide and chloride condition of several temperatures. ![]() Its surface had a few pits for long duration. From these results, the degradation conditions were determined in distilled water, 3.5 wt.% NaCl and 1M Na $_2$SO $_4$solution at room temperature, 60 $\^$ during 3, 6 and 9 months. It showed that the higher temperature, the faster corrosion rates and corrosion rates were the fastest in 3.5 wt.% NaCl and 1M Na $_2$SO $_4$solution. The polarization tests recommended in ASTM G5 standard for corrosion susceptibility in the various corrosive solutions was estimated. To estimate the reliability of 12Cr alloy steel, the material of turbine blade in the steam power plant, Its corrosion susceptibility and fatigue characteristics in NaCl and Na $_2$SO $_4$solution with the difference of concentration and temperature was investigated. ![]()
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