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中国腐蚀与防护学报  1981, Vol. 1 Issue (3): 1-7    
  研究报告 本期目录 | 过刊浏览 |
金属——熔盐体系某些方面的研究
石声泰
中国科学院上海冶金研究所
Some Aspects of the Metal-Fused Salt System
Shih Shengtai(Institute of Metallurgy; Academy of Sciences of China)
全文: PDF(595 KB)  
摘要: 当两种不同的金属放在熔融的硷金属或硷土金属氯化物盐浴中时,较易腐蚀的金属会沉积在较难腐蚀的金属上。作者研究了许多这样的金属对,例如:Ti-Cu,Ti-Fe,Cr-Fe,Cr-Mo,Al-Fe,Al-Ni,Si-Fe,Si-Mo等。在这些金属对中,列在前面的金属较易被熔盐腐蚀而沉积在后面的金属上,形成扩散层,能赋予基体金属许多有用的表面性能,如抗蚀性、抗高温氧化性、抗磨耗性等。置换反应对金属沉积所起的作用很小,歧化在温度较高时有较重要的作用,而电化学作用是主要的。当阴极电流通到被腐蚀的金属时,腐蚀受到阻滞,沉积也受阻滞。反之,如果将被腐蚀的金属接为阳极,而将试样接为阴极时,沉积会加速。在熔盐中容易腐蚀的金属,例如钛,可以在熔盐中用阴极保护而进行热处理。
Abstract:When two different metals are placed in a fused alkali or alkaline-earth chloride bath, the more readily corrodible metal will deposit on the less corrodible one. Many such systems were studied, including Ti-Cu, Ti-Fe, Cr-Fe, Cr-Mo, Al-Fe, Si-Fe, Si-Mo, etc. The metals listed first would deposit on the immediately following ones. The resulting coatings belong to the category of diffusion coatings and impart to the substrate metal useful surface properties such as resistance to corrosion, high temperature oxidation, or wear, Chemical exchange reactions contribute only to a very small extent to the mechanism of coating, while disproportionation may play some important part at high temperatures. When cathodic current is applied to the corroding metal, corrosion stops while coating is discontinued in the meantime. On the contrary, coating will be accelerated if anodic current is applied to the metal while the sample being coated is connected as cathode of the electrolytic cell. The coating mechanism is, therefore, electrochemical in nature. Metals readily corrodible in fused salt, such as titanium, can be heat treated in fused salt bath under cathodic protection.
收稿日期: 1981-06-25     

引用本文:

石声泰. 金属——熔盐体系某些方面的研究[J]. 中国腐蚀与防护学报, 1981, 1(3): 1-7.
. Some Aspects of the Metal-Fused Salt System. J Chin Soc Corr Pro, 1981, 1(3): 1-7.

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y1981/V1/I3/1

[1] C. B. Gill, M. E. Straumanis and A. W. Schlechten, J. Electrochem. Soc., Vol. 102, 81(1953)
[2] S. T. Shih(石声泰), M. E. Straumanis and A. W,.Schlechten, J. Eleetrochem. Soc., Vol. 103, 395(1956)
[3] S. T. Shih(石声泰), De Re Metallica(A Montana School of Mines Publication, Butte, Montana, U. S. A.), Vol. ⅩⅫ, No. 2, 5-11(1956)
[4] 石声泰等.中国科学,Vol. Ⅻ, No. 11, 1766, Nov (1963)
[5] R. L. Samuel and N. A. Lockington, Metal Treatment and Drop Forging, Vol. 19, 27 (1952)
[6] 石声泰.闻立昌,1964全国腐蚀和防护科学技术会议报告集,170(科学出版社)
[7] S. T Shih,M.R.Feng,T.L.Cao and C.L.Zhang,第八届国际金属腐蚀学术会议(8 th ICMC)论文。1981年9月在西德Frankfurt,Main举行
[8] 石声泰,冯明仁.曹铁梁.张彩玲,“熔盐电解法渗铝的研究”,本刊下期
[9] N. C. Cook, Proceedings of International Conference Protection against Corrosion by Metal Finishing, Basel, 22-25 November, 51 (1966)
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