金属学报  1985, Vol. 21 Issue (6): 39-116

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镍基高温合金热腐蚀过程中内硫化-内氧化机制的探讨

朱日彰;左禹;郭曼玖

北京钢铁学院;北京钢铁学院;冶金部钢铁研究总院

AN APPROACH TO MECHANISM OF INTERNAL SULPHIDATION-INTERNAL OXIDATION DURING HOT CORROSION OF Ni-BASE ALLOY

by ZHU Rizhang;ZUO Yu Beijing University of Iron and Steel Technology;GUO Manjiu Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing

朱日彰;左禹;郭曼玖. 镍基高温合金热腐蚀过程中内硫化-内氧化机制的探讨[J]. 金属学报, 1985, 21(6): 39-116.
, , . AN APPROACH TO MECHANISM OF INTERNAL SULPHIDATION-INTERNAL OXIDATION DURING HOT CORROSION OF Ni-BASE ALLOY[J]. Acta Metall Sin, 1985, 21(6): 39-116.

摘要 参考文献 相关文章 Metrics 全文: PDF(4031 KB)   摘要: 用含放射性同位素~(35)S的硫酸钠沉积法研究了Ni-16Cr-2Nb变形合金在910—1020℃之间的热腐蚀过程。~(35)S自射线照相表明,硫优先沿晶界扩散,形成硫化物,硫化物随后发生氧化,释放出的硫能够沿晶界形成新的硫化物,也能够固溶到晶粒内部进行点阵扩散。合金的内硫化深度与热腐蚀增重之间无直接联系。这些实验结果为热腐蚀的硫化—氧化机制提供了新的证据。 Abstract：The process of hot corrosion of Ni-16Cr-2Nb wrought alloy was studied bythe method of Na_2SO_4 deposit containing isotop ~(35)S in the temperature range of910--1020℃. The ~(35)S autoradiography showed that the sulphur diffused alongthe grain boundaries of the alloy preferentially, forming metallic sulphides there.The sulphides were then oxidized and released free sulphur which might form newsulphides at grain boundary and be dissolved into grains and transport inwardby volume diffusion. No direct relation was found between the internal sulphi-dized depth and the weight gain of hot corrosion of the alloy. Experimentalresults provide a new proof about the mechanism of internal sulphidation-inter-nal oxidation during hot corrosion. 收稿日期: 1985-06-18      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 朱日彰 左禹 郭曼玖 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I6/39 1 Stringer. J., Ann. Rev. Mater. Sci., 7(1977) . 477． 2 Simons, E. L.; Browing, G. V.; Liebhafsky, H. A., Corrosion, 11(1955) , 505T. 3 Seybolt, A. U., Trans. Metall. Soc. AIME. 242 (1968) , 1955． 4 Spengler, C.J.; Viswanathan. R., Metall. Trans., 3(1972) , 161． 5 Tedmon, C. S.; Seybolt, A. U., Corros. Sci., 8 (1968) , 125． 6 Goe bel, J. A.: Pettit. F. S., Metall. Trans., 1(1970) , 3421． 7 Bornstein, N. S.: Decrescente, M.A., Trans. Metall. Soc. AIME, 245 (1969) . 1947． 8 郭曼玖;左禹;朱日彰,理化检验,物理分册,(待发表). No related articles found! Viewed Full text Abstract Cited   Shared      Discussed