Effect of Iron Ion on Corrosion Behavior of Inconel 625 in High-Temperature Water

被引：6

作者：

Zhou, Huiling ^{[1
]}

Chen, Yipeng ^{[1
]}

Sui, Yi ^{[1
,2
]}

Lv, Yunfei ^{[3
]}

Zhu, Zhiyuan ^{[1
]}

Yang, Lanlan ^{[1
]}

He, Zhen ^{[1
]}

Li, Chengtao ^{[4
]}

Fang, Kewei ^{[4
]}

机构：

[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China

[2] AO Smith China Water Heater Co Ltd, Nanjing 210038, Peoples R China

[3] Chengde Petr Coll, Chengde 067000, Peoples R China

[4] Suzhou Nucl Power Res Inst, Suzhou 215004, Peoples R China

来源：

SCANNING | 2020年 / 2020卷

基金：

中国国家自然科学基金;

关键词：

AUSTENITIC STAINLESS-STEELS; NICKEL-BASE ALLOYS; SUPERCRITICAL WATER; DISSOLVED HYDROGEN; OXIDE-FILMS; CHLORIDE; 304-STAINLESS-STEEL; MECHANISMS; OXIDATION; SULFATE;

D O I：

10.1155/2020/9130362

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The corrosion behavior of an ultralow iron nickel-based alloy Inconel 625 under high-temperature water has been evaluated. The results show that surface oxidation and pitting were the principal corrosion mechanisms of Inconel 625 during the initial immersion period. The surface layer of the oxide film is first Ni-enriched and then Fe-enriched as immersion time increases. The iron ions dissolved from the autoclave could lead to the formation of NiFe2O4 and have a great influence on the oxidation behavior of Inconel 625. The oxides nucleated by solid-state reactions with selective dissolution of Fe and Ni and then grew up through precipitation of cations from solution.

引用

页数：8

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