| The vanadium attack of 18-8 stainless steel was studied at temperatures between 700℃∼1100℃. In the corrosion by V₂O_5, at temperatures up to 800℃, the amount of weight loss by corrosion was very small. But at 900℃ the weight loss was very large. At 1000℃, however, after 2 hours the weight loss was less than that of at 900℃. At 1100℃, the weight loss was increased in a large amount. In the corrosion by V₂O_5-Na₂SO₄ mixtures, at temperatures up to 800℃, the weight loss showed maximum in the regions of 15∼25% Na₂SO₄. At temperatures above 900℃, the weight loss was maximum when corroded by V₂O_5 only. And as the amount of V₂O_5 in the mixtures was decreased, the amount of weight loss was decreased too. But at 1100℃ the amount of weight loss was maximum in the vicinity of 90% Na₂SO₄. |
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