Abstract

本研究主要探討氧化劑對316SS 在 H2SO4 + HF 水溶液中之腐蝕行為的影響。利用浸漬腐蝕試驗及電化學試驗評估不同氧化劑對3 16SS在 H2SO4+HF 酸溶液中腐蝕速率之影響。浸漬實驗結果指出,316SS在 1.53 M H2SO4+0.25M HF 酸液中隨著氧化劑〔Fe(superscript 3+)、H2O2〕的添加其重量損失有減緩的趨勢。但是,在 1.53 M H2SO4+1.5 M HF 酸液中,腐蝕速率則隨著氧化劑的添加而增大。另外由動電位極化曲線結果可知,316SS於 H2SO4+ HF 酸液之鈍態電流密度隨著 HF 濃度增加而隨之變大;且腐蝕電位也因氧化劑之添加而有所提升。

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