The corrosion behavior of Hastelloy C-276 was investigated to identify its applicability for carbon-anode-based oxide reduction (OR), in which Cl<sub>2</sub> and O<sub>2</sub> are simultaneously evolved at the anode. Under a 30...
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https://www.riss.kr/link?id=A107109562
2020
English
KCI등재,SCOPUS,ESCI
학술저널
383-393(11쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
The corrosion behavior of Hastelloy C-276 was investigated to identify its applicability for carbon-anode-based oxide reduction (OR), in which Cl<sub>2</sub> and O<sub>2</sub> are simultaneously evolved at the anode. Under a 30...
The corrosion behavior of Hastelloy C-276 was investigated to identify its applicability for carbon-anode-based oxide reduction (OR), in which Cl<sub>2</sub> and O<sub>2</sub> are simultaneously evolved at the anode. Under a 30 mL·min<sup>-1</sup> Cl<sub>2</sub> + 170 mL·min<sup>-1</sup> Ar flow, the corrosion rate was less than 1 g·m<sup>-2</sup>·h<sup>-1</sup> up to 500℃, whereas the rate increased exponentially from 500 to 700℃. The effects of the Cl<sub>2</sub>-O<sub>2</sub> composition on the corrosion rate at flow rates of 30 mL·min<sup>-1</sup> Cl<sub>2</sub>, 20 mL·min<sup>-1</sup> Cl<sub>2</sub> + 10 mL·min<sup>-1</sup> O<sub>2</sub>, and 10 mL·min<sup>-1</sup> Cl<sub>2</sub> + 20 mL·min<sup>-1</sup> O<sub>2</sub> with a constant 170 mL·min<sup>-1</sup> Ar flow rate at 600℃ was analyzed. Based on the data from an 8 h reaction, the fastest corrosion rate was observed for the 20 mL·min<sup>-1</sup> Cl<sub>2</sub> + 10 mL·min<sup>-1</sup> O<sub>2</sub> case, followed by 30 mL·min<sup>-1</sup> Cl<sub>2</sub> and 10 mL·min<sup>-1</sup> Cl<sub>2</sub> + 20 mL·min<sup>-1</sup> O<sub>2</sub>. The effects of the chlorine flow rate on the corrosion rate were negligible within the 5-30 mL·min<sup>-1</sup> range. A surface morphology analysis revealed the formation of vertical scratches in specimens that reacted under the Cl<sub>2</sub>-O<sub>2</sub> mixed gas condition.
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