金属学报  1980, Vol. 16 Issue (4): 394-400

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稀土元素对Fe-Cr-Al合金氧化皮结合力的影响

章复中;孙传岳

包头冶金研究所;上海电工合金厂

EFFECTS OF RARE EARTH ADDITIONS ON THE COHESION OF OXIDE SCALE IN AN Fe-Cr-Al ALLOY

Zhang Fuzhong;Sun Chuanyue Baotou Institute of Metallurgy Research and Shanghai Electrical Alloy Plant

章复中;孙传岳. 稀土元素对Fe-Cr-Al合金氧化皮结合力的影响[J]. 金属学报, 1980, 16(4): 394-400.
, . EFFECTS OF RARE EARTH ADDITIONS ON THE COHESION OF OXIDE SCALE IN AN Fe-Cr-Al ALLOY[J]. Acta Metall Sin, 1980, 16(4): 394-400.

摘要 参考文献 相关文章 Metrics 全文: PDF(1034 KB)   摘要: 0.103％La,0.092％Ce,0.068％(Ce+La)混合稀土和0.25％Y皆能成倍提高0Cr25Al5电热合金的快速寿命和恒温寿命,显著提高合金丝表面氧化皮在高温下的强度.合金添加稀土后,抑制了α-Al_2O_3氧化皮内层Fe,Cr离子的富集,在加Y合金的外氧化皮中还高度富集了Y_3Al_2(AlO_4)_3相(YAG),提高了氧化皮本身的结合力,这可能是稀土元素提高Fe-Cr-Al合金高温寿命的主要原因. Abstract：In Fe-25Cr-5Al electrical resistance alloy, the presence of 0.103% La, 0.092%Ce, 0.068% mischmetal or 0.25% Yappeared to increase its service life significantlyeither found by accelerated life testing or by isothermal life testing procedurerespectively. There is also a rise in strength of oxide scales formed on the wiresurface.It is found that the distribution of alloying elements in the oxide scale ischanged markedly by the addition of RE. The enrichment of Fe and Cr ions inthe inner layer of the α-Al_2O_3 scale is suppressed, and in Y-containing alloy, theenrichment of Y in the scale causes the formation of Y_3Al_2(AlO_4)_3 phase (YAG).Both may give rise to the improvement of cohesion within the oxide scale whichwould in turn contribute significantly to the increase in service life of the alloy. 收稿日期: 1980-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 章复中 孙传岳 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1980/V16/I4/394 [1] Wukusick, C. S., Mater. Res. Stand., 4 (1964) , 637． [2] Golightly, F. A., Stott, F. H. and Wood, G. C., Oxid. Metals, 10 (1976) , 163． [3] Tien, J. K. and Pettit, F. S., Met. Trans., 3 (1972) , 1587． [4] 骆继勋,银耀德,林生昆,赵齐,王俭,金属学报,13(1977) ,263． [5] Jan, J. P., Steinemann, S. and Dinichert, P., J. Phys. Chem. Solids, 12 (1960) , 349． [6] Warshaw, S. I. and Norton, F. H., J. Amer. Cer. Soc., 45 (1962) , 479． [7] Cahoon, H. P. and Chrislensen, C. J., J. Amer. Cer. Soc. 39 (1956) , 337．s No related articles found! Viewed Full text Abstract Cited   Shared      Discussed