金属学报  1981, Vol. 17 Issue (3): 233-242

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稀土元素对Fe-Cr-Al合金1200℃氧化层择尤取向的影响

张立新;骆继勋;银耀德;李黎光;赵齐;张家芸

EFFECTS OF RARE EARTH ON PREFERRED ORIENTATION IN OXIDE SCALE O FA Fe-Cr-Al ALLOY

by Zhang Lixin; Luo Jixun; Yin Yaode and Li Liguang (Institute of Metal Research; Academia Sinica) Zhao Qi and Zhang Jiayun

张立新;骆继勋;银耀德;李黎光;赵齐;张家芸. 稀土元素对Fe-Cr-Al合金1200℃氧化层择尤取向的影响[J]. 金属学报, 1981, 17(3): 233-242.
, , , , , . EFFECTS OF RARE EARTH ON PREFERRED ORIENTATION IN OXIDE SCALE O FA Fe-Cr-Al ALLOY[J]. Acta Metall Sin, 1981, 17(3): 233-242.

摘要 参考文献 相关文章 Metrics 全文: PDF(820 KB)   摘要: 本文用倒极图法研究了含0.5％Y和0.15％(La+Ce)稀土对Fe-Cr-Al合金在1200℃氧化时氧化层择尤取向的影响。 稀土元素对氧化层择尤取向类型的影响较小,三种合金的主要择尤取向都是(01(?)8),次要择尤取向有所区别:含稀土的合金是(11(?)9)、(10(?)10),不含稀土的合金是(0001)、(10(?)10)。稀土元素对增强和保持氧化层择尤取向的能力作用较大,其中Y比(La+Ce)的作用更为明显。 本文应用短路扩散位错通道的模型描述合金的氧化过程,使得氧化层的P_(10(?)1)系数曲线的变化和氧化动力学曲线的变化得到较好的吻合,这说明稀土元素的作用是通过改变氧化层的择尤取向来影响合金的抗氧化性能的。 Abstract：The effects of RE additions, 0.5% Y or 0.15% (La+Ce), on the prefe ed orientation of oxide scale formed at 1200℃ in a Fe-Cr-Al alloy have been studied by inverse-pole-figure method. It was found that the addition of RE element affects the types of preferred orientation to a limited extent.The main preferred orientation in the oxide scale on three tested alloys are identical as (0118);whereas some differences are shown among their minor ones with (1129)and (10110) for alloys containing Y or La+Ce, and (0001) and (10110) for an alloy without RE. RE can play an important part in conserving and enhancing the preferred orientations in the scale, among which Y has a more remarkable effect than La+Ce.The oxidation process of the alloys was discribed by the shortcircuit dislocation path model. This model makes the variation curve of P_1011 parameter of the oxide scale in good agreement with the variation curves of oxidation dynamics. This accounts for the fact that RE elements improve the oxidation resistance of the alloy through their effect on modifying the preferred orientation of the oxide scale. 收稿日期: 1981-03-18      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 张立新 骆继勋 银耀德 李黎光 赵齐 张家芸 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1981/V17/I3/233 [1] 骆继勋、银耀德、林生昆、赵齐、王俭,金属学报,13(1977) ,263． [2] 天野忠昭,矢島聖使,斎藤安俊,日本金属学会誌,41(1977) ,1074． [3] Golightly, F. A., Sott, F. H. and Wood, G. C., Oxid. Metals, 10 (1976) , 163． [4] Kubaschewski, O. and Hopkins, B. E., Oxidation of Metals and Alloys, 2nd ed. Butterworths, London, 1962, p. 66． [5] Muller, M. H. Chernock, W. P. and Beck, P. A., Trans. AIME, 212 (1958) , 39． [6] Klug, H. P. and Alexander, L. E., X-Ray Diffraction Procedures for Polycrystalline and Amorphous, 2nd ed., John Wiley & Sons New York, 1974, p. 360． [7] 张立新、银耀德、李黎光、赵齐、张丙申,金属学报,16(1980) . [8] Felten, E. J. and Pettit, F. S., Oxid. Metals, 10 (1976) , 189． [9] Hirota, K. and Komatsu, W., J. Amer. Ceram. Soc., 60 (1977) , 105． [10] Sadananda, K. and Marcinkowski, M. J., J. Appl. Phys., 45 (1974) , 1521． [11] Stephens, D. L. and Alford, W. J., J. Amer. Ceram. Soc., 47 (1964) , 81． [12] Scheuplein, R. and Gibbs, P., J. Amer. Ceram. Soc., 43 (1960) , 458． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed