Corrosion of Nickel and Iron-based Superalloys in High Temperature Gas Environments

被引：6

作者：

Yeh, T. K. ^{[1
,2
]}

Chang, H. P. ^{[1
]}

Wang, M. Y. ^{[3
]}

Kai, J. J. ^{[1
,2
]}

Yuan, T. ^{[2
]}

机构：

[1] Natl Tsing Hua Univ, Inst Nucl Engn & Syst Sci, Hsinchu 300, Taiwan

[2] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu 300, Taiwan

[3] Natl Tsing Hua Univ, Nucl Sci & Dev Ctr, Hsinchu 300, Taiwan

来源：

CORROSION, PASSIVITY, AND ENERGY: A SYMPOSIUM IN HONOR OF DIGBY D. MACDONALD | 2013年 / 50卷 / 31期

关键词：

WATER-VAPOR; OXIDATION BEHAVIOR; CHROMIA LAYERS; ALLOYS; DIFFUSION; ALUMINUM; OXIDES; SYSTEM; 304L;

D O I：

10.1149/05031.0033ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

High-temperature gas-cooled reactors (HTGRs) with helium gas as the primary coolant have been considered as Generation IV nuclear power reactor systems. Several iron- and nickel-based superalloys, including Incoloy 800H, Hastelloy X, and Inconel 617, are potential structural materials in pressure boundary components, such as the intermediate heat exchanger (IHX) in an HTGR. Impurities in a helium coolant, such as H2O and O-2, can interact with structural materials at working temperatures of > 900 degrees C, causing serious degradation. This study investigates the oxidation behavior of three selected alloys (Hastelloy X, Incoloy 800H, and Inconel 617) in high-temperature, gaseous environments with various levels of O-2 and H2O. A series of corrosion tests were conducted at test temperatures of 650 degrees C, 750 degrees C, 850 degrees C and 950 degrees C under various coolant compositions of dry air, 1% O-2, 10% humidity, and 50% humidity.

引用

页码：33 / 49

页数：17

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