Stability domain of alumina thermally grown on Fe-Cr-Al-based model alloys and modified surface layers exposed to oxygen-containing molten Pb

被引：34

作者：

Jianu, A. ^{[1
]}

Fetzer, R. ^{[1
]}

Weisenburger, A. ^{[1
]}

Doyle, S. ^{[1
]}

Bruns, M. ^{[1
]}

Heinzel, A. ^{[1
]}

Hosemann, P. ^{[2
]}

Mueller, G. ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[2] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2016年 / 470卷

关键词：

FeCrAl-based alloy; Modified surface layer; Molten Pb; Selective oxidation; Alumina; CORROSION-RESISTANCE; LIQUID-METAL; ODS STEELS; LEAD; OXIDATION; CHROMIUM; REACTORS; BEHAVIOR;

D O I：

10.1016/j.jnucmat.2015.12.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper gives experimental results concerning the morphology, composition, structure and thickness of the oxide scales grown on Fe-Cr-Al-based bulk alloys during exposure to oxygen-containing molten lead. The results are discussed and compared with former results obtained on Al-containing surface layers, modified by melting with intense pulsed electron beam and exposed to similar conditions. The present and previous results provide the alumina stability domain and also the criterion of the Al/Cr ratio for the formation of a highly protective alumina layer on the surface of Fe-Cr-Al-based alloys and on modified surface layers exposed to molten lead with 10(-6) wt.% oxygen at 400-600 degrees C. The protective oxide scales, grown on alumina-forming Fe-Cr-Al alloys under the given experimental conditions, were transient aluminas, namely, kappa-Al2O3 and theta-Al2O3. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：68 / 75

页数：8

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