Hot Corrosion Behavior of High-Chromium, High-Carbon Cast Irons in NaCl-KCl Molten Salts

被引：8
|
作者：
Vuelvas-Rayo, S. [1 ]
Gonzalez-Rodriguez, J. G. [1 ]
Porcayo-Calderon, J. [2 ]
Salinas-Bravo, V. M. [2 ]
Maldonado-Ruiz, S. I. [3 ]
机构：
[1] Univ Autonoma Estado Morelos, CIICAp, Ave Univ 1001,Col Chamilpa, Cuernavaca 62500, Morelos, Mexico
[2] IIE, Gerencia Mat & Proc Quimicos, Cuernavaca 62490, Morelos, Mexico
[3] Univ Autonoma Zacatecas, Fac Ingn, Zacatecas 98068, ZAC, Mexico
来源：
INTERNATIONAL JOURNAL OF CORROSION | 2012年 / 2012卷
关键词：
D O I：
10.1155/2012/479761
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A study on the corrosion behavior of a series of experimental high-chromium (18.53-30.48 wt.%), high-carbon (3.82-5.17%) cast irons in NaCl-KCl (1 : 1M) at 670 degrees C has been evaluated by using weight loss technique and compared with a 304-type stainless steel. It was found that all castings had a higher corrosion rate than conventional 304SS and that the addition of Cr increased the degradation rate of the cast irons. Additionally, corrosion rate increased by increasing the C contents up to 4.29%, but it decreased with a further increase in its contents. Results are discussed in terms of consumption of the Cr2O3 layer by the melt.
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页数：9
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