金属学报  1979, Vol. 15 Issue (2): 203-305

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一种35Ni-15Cr型铁基高温合金的氧化、腐蚀与防护

郭建亭

中国科学院金属研究所

AN INVESTIGATION OF THE OXIDATION AND HOT CORROSION OF A 3SNi-15Cr TYPE IRON-BASE ALLOY

Guo Jianting Institute of Metal Research; Academia Sinica

郭建亭. 一种35Ni-15Cr型铁基高温合金的氧化、腐蚀与防护[J]. 金属学报, 1979, 15(2): 203-305.
. AN INVESTIGATION OF THE OXIDATION AND HOT CORROSION OF A 3SNi-15Cr TYPE IRON-BASE ALLOY[J]. Acta Metall Sin, 1979, 15(2): 203-305.

摘要 参考文献 相关文章 Metrics 全文: PDF(1727 KB)   摘要: 测定了一种35Ni-15Cr型铁基高温合金750—1000℃的氧化动力学曲线,并计算出氧化激活能Q_(p1)=41kcal/g-mol,Q_(p2)=46kcal/g-mol.X射线结构分析表明,氧化膜主要由Cr_2O_3构成,并含有(Cr,Fe)_2O_3,TiO_2及NiCr_2O_4。电子探针分析表明,氧化膜富Cr,Fe,Ti。铬离子在Cr_2O_3中的扩散是这种合金抛物线氧化过程的主要控制机构。 渗铝防护后,氧化膜富Al,Cr,Ti.主要由a-Al_2O_3构成,并含有TiO_2和Fe(Cr,Al)_2O_4。这种致密而牢固的氧化膜使抗氧化和抗热腐蚀性能大为改善。 Abstract：The oxidation behaviour of a 35Ni-15Cr type iron-base superalloy in air overthe temperature range of 700 to 1000℃ for period up to 200 hours has beenstudied. The results obeyed the conventional parabolic law from which the valuesof activation energy Q_(P1)=41 and Q_(P2)=46 kcal per mole were estimated. The dif-fusion of Cr ions in Cr_2O_3 was obviously the governing factor to oxidation rateand X-ray analysis indicated that the surface scale consisted mainly of Cr_2O_3 witha certain amount of (Cr,Fe)_2O_3, TiO_2 and NiCr_2O_4. The results were confirmedby electron probe, showing surface enrichment of Cr, Fe and Ti. The scale wasdense and tightly adhered to the surface of the oxidized specimen. If such an alloywas previously alumited, its oxidation-resisting and anti-corrosion properties weremarkedly improved and the scale, being enriched with Al, Cr and Ti, now con-sisted mainly of α-Al_2O_3 with minute Fe(Cr,Al)_2O_4 and TiO_2. With alumiting,the scale was more dense and more tightly adhered to surface than without alumiting. 收稿日期: 1979-02-18      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 郭建亭 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1979/V15/I2/203 [1] Kubaschewski, O. and Hopkins, B. E., Oxidation of Metals and Alloys, 2nd ed., Butterworths, London, 1962, p. 49． [2] 铁基高温合金研究组,金属学报,14(1978) ,227． [3] 铁基高温合金研究组,金属学报,14(1978) ,348． [4] Hagel, W. C. and Seybolt, A. U., J. Electrochem. Soc., 108 (1961) , 1146． [5] Himmel, L., Mehl, R. F. and Birchenall, C. E., J. Metals, 5 (1953) , 827． [6] 郭建亭,朱耀宵,师昌绪,金属学报,10 (1974) , 74． [7] Wlodek, S. T., Trans. AIME, 230 (1964) , 177． [8] ibid, 230 (1964) , 1078． [9] Rhee, S. K. and Spencer, A. R., Met Trans., 1 (1970) , 2021． [10] Stringer, J., Annual Review of Materials Science, Vol. 7, Palo Alto, California, 1977, p. 477． [11] Bergman, P. A., Corrosion, 23 (1967) , № 3, 72． [12] 姚鸿年,金相研究法,中国工业出版社, 1963, p. 374． [13] Paladino, A. E. and Kingery, W. D., J. Chem. Phys., 37 (1962) , 957． [14] Nicholls, B. J., Corros. Technol., 9 (1962) , № 9, 238． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed