金属学报  1965, Vol. 8 Issue (1): 98-102

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铬在18铬-8镍型不锈钢晶粒边界的贫铬层中的分布

华保定;沈行素;周德瑞;李桂芝

中国科学院应用化学研究所;中国科学院应用化学研究所;中国科学院应用化学研究所;中国科学院应用化学研究所

ON THE DISTRIBUTION OF CHROMIUM IN THE CHROMIUMDEPLETED ZONE OF A SENSITIZED 18-8 STAINLESS STEELS

HUA PAO-TING;SHEN HSING-SU;CHOW TEH-JUI;LI KUI-CHIH Institute of Applied Chemistry; Academia Sinica

华保定;沈行素;周德瑞;李桂芝. 铬在18铬-8镍型不锈钢晶粒边界的贫铬层中的分布[J]. 金属学报, 1965, 8(1): 98-102.
, , , . ON THE DISTRIBUTION OF CHROMIUM IN THE CHROMIUMDEPLETED ZONE OF A SENSITIZED 18-8 STAINLESS STEELS[J]. Acta Metall Sin, 1965, 8(1): 98-102.

摘要 参考文献 相关文章 Metrics 全文: PDF(401 KB)   摘要: 利用本文作者等最近发展的量电法,进一步研究了18Cr-8 Ni型不锈钢的贫Cr区。在不同电位下测定J-t曲线并对所得溶液进行分析的结果表明,贫Cr层是由贫Cr程度不等的连续区域组成的.对于在650℃敏化处理2小时的18Cr-8Ni型不锈钢说来,贫Cr层中含Cr量低于8.7％的仅128埃(Cr_(23)C_6的每一侧),低于16.1％的仅384埃,而整个贫Cr区宽度则达200埃左右。这样,利用这一方法,我们第一次定量地得出了Cr在贫Cr层中的分布图。 Abstract：The distribution of chromium in the chromium-depleted zone of a sensitized (650℃,2 hrs.) 18-8 stainless steel was studied by our coulometric method. A sheet of stainlesssteel was held at a potential at which the chromium-depleted zone is active whereas theregions with higher chromium contents remain passive. Since the different parts of thedepleted zone contain different amounts of chromium and thus have different passivatingproperties, they can be "extracted" fractionally at different potentials and allow theirwidths and compositions to be determined separately. Using this method, it is shown that the chromium-depleted zone consists of layersof continuously varying chromium contents and passivating properties. The total widthof the depleted zone is about 2000A, but that containing less than 8.7％ Cr is only128A (on each side of Cr_(23)C_6) and that containing less than 16.1％ Cr is only 384A,etc. Thus, the distribution diagram of chromium in the depleted zone is for the firsttime quantitatively obtained (Fig. 2). 收稿日期: 1965-01-18      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 华保定 沈行素 周德瑞 李桂芝 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1965/V8/I1/98 [1] 华保定、沈行素、戴钟道等:科学通报,1963,(12) ,56． [2] Hopkinson, B. E., Carroll, K. G.: Nature, 1959, 184, 1479． [3] Philibert, J., Voeltzel, J., Platean. J.: Compt. Rend., 1961, 252, 2705． [4] Edeleanu, C.: J. Iron Steel Inst., (London), 1957, 185, 482． [5] Cihal, V., Prazak, M.: J. Iron Steel Inst. (London), 1959, 193, 360． [6] 华保定、沈行素、邹中坚:科学通报,1964,(1) ,81． [7] 华保定、沈行素、周德瑞:敏化温度对于贫铬层宽度的影响,未发表. [8] #12 [9] Панченко,Е.В.等著,孙一唐译:金相实验室,(冶金工业出版社,1960年),459-460页. [10] Philibert, J., Crussard, C., Wache, X. et al.: Compt. Rend., 1960, 251, 1289． [11] #12 [12] Hatwell, H.: 3~e Colloque de Metallurgie sur la Corrosion, (Centre d'Etudes Nucleaires de Seclay, 1960) , p. 142．; No related articles found! Viewed Full text Abstract Cited   Shared      Discussed