熔盐电解共渗铝硅及渗层的抗高温腐蚀性能

中国腐蚀与防护学报

1986, Vol. 6

Issue (4): 249-254

研究报告

本期目录 | 过刊浏览

熔盐电解共渗铝硅及渗层的抗高温腐蚀性能

郑学进;曹铁梁;石声泰

中国科学院上海冶金研究所;中国科学院上海冶金研究所;中国科学院上海冶金研究所

FUSED SALT ELECTROLYTIC CO-DEPOSITION OF Al AND Si AND HIGH TEMPERATURE CORROSION RESISTANCE OF Si-CONTAINING ALUMINIUM COATINGS

Zheng Xuejin Cao Tieliang and Shi(Shih) Shengtai(Shanghai Institute of Metallurgy; Academia Siniea)

全文: PDF(797 KB)

摘要: 在渗铝涂层中加入少量硅可进一步提高涂层的抗高温氧化和热腐蚀性能。本文作者采用一种新的方法—高温熔盐电解法,在熔融氯化物盐浴中进行电解共渗铝硅,在铁和铁—铬合金上获得了渗铝硅涂层。用氯化物作为电解质主要优点是无毒和价廉。高温熔盐电解渗铝硅可获得表面光洁、厚度均匀、与基体结合良好的致密渗层。通过控制电解温度、时间和电流密度可容易地控制渗层厚度,所得到的渗层不需随后热处理。 1000℃氧化试验和900℃热腐蚀(盐膜法)结果表明渗铝硅涂层比单纯渗铝涂层具有更好的保护性能。

Abstract：Aluminium coatings are the most widely used high temperature protective coatings. A small amount of Si can be added in aluminium coatings to further improve the resistance to high temperature corrosion. At present, pack cementation, slurry coating and hot dipping are generally adopted to produce Al and Al-Si coatings. In this work, Si-containing aluminium coatings on Fe and Fe-Cr alloys are made by electrolytic codeposition of Al and Si from fused chloride bath. Smooth, adherent and dense coatings can be produced by fused salt electrolytic co-deposition of Al and Si. The coatings are uniform in thickness which can easily be controlled by the process parameters, such as temperature, time and current density. No subsquent heat treatment is needed after coating. The results of oxidation test at 1000~C and hot corrosion test(using salt-film method) at 900℃ show that Si-containing aluminium coatings have better protective properties then plain aluminium coatings.

收稿日期: 1986-08-25

	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
	郑学进
	曹铁梁
	石声泰
44.8K

引用本文:

郑学进;曹铁梁;石声泰. 熔盐电解共渗铝硅及渗层的抗高温腐蚀性能[J]. 中国腐蚀与防护学报, 1986, 6(4): 249-254.
. FUSED SALT ELECTROLYTIC CO-DEPOSITION OF Al AND Si AND HIGH TEMPERATURE CORROSION RESISTANCE OF Si-CONTAINING ALUMINIUM COATINGS. J Chin Soc Corr Pro, 1986, 6(4): 249-254.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1986/V6/I4/249

[1] Л.С.里霍维奇主编,李贻锦、赵鹭华译,多元共渗,机械工业出版社,1983年,130～139
[2] Gedwill, M. A.; Grisaffe, S. T., Metal Progrss, 106, 66～68(1974)
[3] Zemskov, G. V.; et al., "Effect of Silicon Additions on the Oxidation Resistance of Aluminided Layers on a Nickel-Chromium Alloy," in Protectective Coatings on Metals, G. V. Samsonov, ed., 4, 110～113(1972)
[4] 杨忠林等,中国腐蚀与防护学报,1(4) ,28～36(1981)
[5] 蔡玉林等,航空材料,1(1) ,39～44(1981)
[6] Cook, N. C., "Diffusion Coating Metals in Molten Fluoride Baths," in protection Against Corrosion by Metal Finishing(Proc. Conf.). N. Ibl, et al., ed., Basel, 151～155(1966)
[7] Cook, N. C., Scientific American, 221, 38～46(1969)
[8] 石声泰等,中国腐蚀与防护学报,1(4) ,1～7(1981)
[9] 石声泰,中国腐蚀与防护学报,1(3) ,1～7(1981)
[10] 王嘉敏,关于舰用燃气轮机高温合金扩散防护层的一些问题,刊于舰船燃气轮机用高温合金(造船材料译丛第十四辑),67～104(1978)
[11] Gabe, D. R., "The Structure of Intermediate Layers in Diffusion Coatings," in High-Temperature Materials, Coating and Surface Interactions, J. B. Newkirk, ed., Freund Publishing House, 145(1980)

No related articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed