The influence of silicon on the corrosion properties of FeCrAl model alloys in oxidizing environments at 600 °C

被引：49

作者：

Eklund, J. ^{[1
]}

Jonsson, B. ^{[2
]}

Persdotter, A. ^{[1
]}

Liske, J. ^{[1
]}

Svensson, J. -E. ^{[1
]}

Jonsson, T. ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Chem & Chem Engn, Environm Inorgan Chem, S-41296 Gothenburg, Sweden

[2] Kanthal, Box 502, S-73427 Hallstahammar, Sweden

来源：

CORROSION SCIENCE | 2018年 / 144卷

关键词：

Alloy; Aluminium; SEM; High temperature corrosion; HIGH-TEMPERATURE OXIDATION; KCL-INDUCED CORROSION; WATER-VAPOR; FE-CR; STAINLESS-STEEL; INITIAL-STAGES; KANTHAL AF; CHROMIUM; BEHAVIOR; OXYGEN;

D O I：

10.1016/j.corsci.2018.09.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present study investigates the influence of Si on the high temperature corrosion behaviour of FeCrAl model alloys in O-2, O-2 + H2O and O-2 + H2O + KCl at 600 degrees C for up to 168 h. The investigation by SEM/EDX showed that all alloys displayed a protective behaviour in dry O-2. In the more corrosive environments (O-2 + H2O and O-2 + H2O + KCl) the addition of Si affected the oxidation properties in two ways; Alloys containing Si resisted breakaway oxidation caused by Cr-evaporation (O-2 + H2O) and the thickness of the oxide formed after breakaway oxidation decreased with increasing amount of Si (O-2 + H2O + KCl).

引用

页码：266 / 276

页数：11

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