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High Temperature Scaling Of Binary Fe-Y Alloys In Pure Oxygen

机译：纯氧中二元Fe-Y合金的高温定标

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摘要

The scaling of two iron-based alloys containing 15 and 30wt yttrium as well as of pure yttrium has been studied at 600-800~0C in l atm of pure O_2.Both alloys formed external scales containing a mixture of iron and yttrium oxides plus double Fe-Y oxides followed by a region of internal oxidation of yttrium, so that the oxidation of iron could not be prevented. Corrosion of the two alloys was generally irretgular and occurred at rates not very differert from those of oxidation of pure iron. No yttrium depletion was observed in the alloys beneath the region of imternal oxidation, in spite of the much larger stability of Y_2O_3 with respect to iron oxides. The scaling behavior of the two alloys is interpreted by taking into account the limited solubility of yttrium in iron.
机译：已经研究了在600-800〜0°C的纯O_2大气压下，两种含15和30wt％钇的铁基合金的结垢，两种合金形成的外部结垢包含铁和氧化钇的混合物加两倍的氧化铁。 Fe-Y氧化物后面是钇的内部氧化区域，因此无法防止铁的氧化。两种合金的腐蚀通常是不规则的，并且发生的速率与纯铁的氧化速率差别不大。尽管Y_2O_3相对于氧化铁具有更大的稳定性，但在内部氧化区域下方的合金中未观察到钇耗尽。考虑到钇在铁中的溶解度有限，可以解释这两种合金的结垢行为。

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