Stress Corrosion Cracking of Inconel 600 and Incology 800 in 50% NaOH at 140℃ under Slow Strain Rate Condition
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概要
- 論文の詳細を見る
Stress Corrosion Cracking (SCC) behaviour of Inconel 600 and Incoloy 800 in aerated 50%. NaOH at 140℃ was investigated using a slow strain rate method under electrochemically controlled potentials. The susceptibility to cracking and the mode of cracking were changed depending upon the applied potential and heat-treatment. SCC occurred in a primary active-passive transition region and a secondary passive region at a strain rate of 4×10^<-3> min^<-1>. The former region : only intergranular cracking took place in both alloys for sensitized materials but not in solution annealed specimens, except for Inconel 600 which showed slight intergranular cracking. The latter region : SCC was found in both alloys and there was not so much difference in the susceptibility between annealed and sensitized materials. Transgranular cracking occurred around 0V (SCE) and intergranular cracking became predominant at a higher or lower potential than 0V. The mechanism of the SCC and the relationship between these results and earlier work were discussed.
- 東北大学の論文
- 1979-12-05
著者
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Kawashima Asahi
The Research Institute For Iron Steel And Other Metals
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Takano Michinori
The Research Institute For Iron Steel And Other Metals
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