Effects of reduced sulfur on the corrosion behavior of Alloy 600 in high-temperature water

被引：11

作者：

Lee, E. H. ^{[1
]}

Kim, K. M. ^{[1
]}

Kim, U. C. ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Dept Nucl Mat Technol Dev, Taejon 305600, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 449卷

关键词：

stress corrosion cracking; steam generator; Alloy; 600; sulfate; reduced sulfur;

D O I：

10.1016/j.msea.2006.02.424

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of reduced sulfur on the corrosion behavior of Alloy 600 MA were investigated in deaerated 0.01 M of sodiumsulfate (Na2SO4), sodium tetrathionate (Na2S4O6), and sodium thiosulfate (NaS2O3) solutions using potentiodynamic polarization and stress corrosion cracking (SCC) tests at 300 degrees C and 340 degrees C. The polarization curves of Alloy 600 MA showed a stable passivity in the Na2SO4 solution; however, the solutions of Na2S4O6 and Na2S2O3 showed accelerated anodic dissolution. The SCC susceptibility of Alloy 600 MA increased in the following order: in the Na2S2O3, Na2SO4, and Na2S4O6 solutions. Results of deposits and spectra taken from an energy dispersive X-ray system confirmed the existence of reduced sulfur. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：330 / 333

页数：4

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