熔盐中添稀加土氯化物对HK40钢腐蚀行为的影响

中国腐蚀与防护学报

1992, Vol. 12

Issue (1): 27-33

研究报告

本期目录 | 过刊浏览

熔盐中添稀加土氯化物对HK40钢腐蚀行为的影响

吴维(山文);牛焱;张鉴清

腐蚀科学开放研究实验室;中国科学院金属腐蚀与防护研究所;腐蚀科学开放研究实验室;中国科学院金属腐蚀与防护研究所;腐蚀科学开放研究实验室;中国科学院金属腐蚀与防护研究所

EFFECT OF RARE EARTH ADDITIONS TO THE MELT ON HOT CORROSION RESISTANCE OF ALLOY HK40

Wu Weitao; Niu Yah; and Zhang Jianqing (Corrosion Science Laboratory; Institute of Corrosion and Protection of Metals;Academia Sinica)

全文: PDF(1275 KB)

摘要: 采用电化学方法,研究了在800℃,(Na,K)_2SO_4+NaCl混合熔盐中,添加Nd、La、Ce的氯化物对HK4O合金腐蚀性能的影响。进行了自腐蚀电位的测试,极化阻力和腐蚀电流密度的计算,不同恒电位下的极化试验以及腐蚀产物的检测与分析。所得结果表明:CeCl_3能以含铈氧化物形式沉淀在合金表面,促进形成相对稳定的富铬氧化膜,降低合金的腐蚀速度。

Abstract：The effect of CeCl_3 additon to bulk melt 75wt% Na_2SO_4+25wt% NaCl on the hot corrosion behavior of alloy HK40 at 800℃ was investigated by electrochemical methods. The free corrosion potential, the polarization resistance and the corrosion current density were measured and calculated. Potentionstatie polarization tests at EAg=812mV and at EAg=-588mV were carried out. The corrosion product mophology was examined. The results show that the addition of 5wt% CeC1_3 greatly decreased the corrosion rate, changed the morphology of corrosion products,and significantly improved hot corrosion resistance of alloy HK40,due to precipitation of cerium oxide on the surface as a promotor for the formation of protective Cr-rich oxide.

收稿日期: 1992-02-25

基金资助:国家自然科学基金

	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
	吴维(山文)
	牛焱
	张鉴清
44.8K

引用本文:

吴维(山文);牛焱;张鉴清. 熔盐中添稀加土氯化物对HK40钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 1992, 12(1): 27-33.
. EFFECT OF RARE EARTH ADDITIONS TO THE MELT ON HOT CORROSION RESISTANCE OF ALLOY HK40. J Chin Soc Corr Pro, 1992, 12(1): 27-33.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1992/V12/I1/27

[1] Deadmore, D. L., and Lowell, C. E., "Inhibition of Hot Salt Corrosion by Metallic Additives", Report TM 78966, NASA, Lewis Research Center, Cleveland, OH, July 1978
[2] Wu, W. T., and Rahmel, A. , Werkst. Korros., 35,139(1987)
[3] Hancock, H. A., Caley, W. F., and Hollingshead, R. S., Mater.Sci.Monogr.,28A (react.Solids A),157(1985)
[4] Kanary, L. E., et al, Mater. Sci. Technol.,3(7) . 571 (1987)
[5] Kanary, L. E., Caley, W. F., and Hollingshead, R. S., Mater. Sci. Techol. , 4(11) ,1035(1987)
[6] 吴维(山文),牛焱,张鉴清,沈嘉年,中国腐蚀与防护学报,11(3) ,(1991)
[7] 牛焱、张鉴清,吴维(山文),中国腐蚀与防护学报,10(3) ,221(1990)
[8] Niu Yan, Zhang Jianqing, and Wu Weitao, International Symposium on High Temerature Corrosion and Protection, June 26～30,1990,Shenyang,China
[9] 张鉴清牛焱吴维(山文),中国腐蚀与防护学报,10,207(1990)
[10] Zhang, Y.S. , and Rapp, R. A., Corros.,43,348(1987)
[11] Hou, P. Y., and Stringer, J.,Sci. Sci.,Eng.,87,195(1987)

No related articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed