论文部分内容阅读
当温度超过1000℃时、二元Fe3Al的抗氧化性能随温度上升而急剧下降对1200℃氧化试样的SEM分析发现试样表面存在晶须状氧化物，氧化层与基体的界面上有大量的孔洞微量的Ce加入Fe3Al可显著地改善合金的抗氧化性能.在1200℃长时间氧化后，含C3的Fe3Al试样表面平整致密，且无氧化物剥落，其抗氧化性能比不含Ce的合金提高了一个数量级关键词##4Fe_3Al;;金属间化合物;;氧化;;Ce
When the temperature exceeds 1000 ℃, the oxidation resistance of binary Fe3Al decreases sharply with temperature rise. The SEM analysis of the 1200 ℃ oxidation sample shows that there is whisker-like oxide on the surface of the sample. There is a large amount of Addition of trace amount of Ce into Fe3Al can significantly improve the oxidation resistance of the alloy.After oxidation at 1200 ℃ for a long time, the surface of Fe3Al-containing C3 sample is smooth and compact with no oxide flaking and its oxidation resistance is lower than that of Ce-free alloy An order of magnitude increase of ## 4Fe_3Al; intermetallic compounds; oxidation ;; Ce