Inverse growth transport in thermal chromia scales on Fe-15Cr steels in oxygen and in water vapour and its effect on scale adhesion

被引：46

作者：

Bamba, G.

Wouters, Y.

Galerie, A.

Borchardt, G.

Shimada, S.

Heintz, O.

Chevalier, S.

机构：

[1] UJF Grenoble, CNRS, INP Grenoble, SIMaP, F-38402 St Martin Dheres, France

[2] Tekn Univ Clausthal, Inst Met, D-38678 Clausthal Zellerfeld, Germany

[3] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan

[4] Univ Bourgogne, Inst Carnot Bourgogne, UMR 5209, F-21078 Dijon, France

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 08期

关键词：

stainless steels; oxidation; oxygen isotopes; water vapour; scale adhesion;

D O I：

10.1016/j.scriptamat.2007.06.050

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Chromia scales of near equivalent thickness were thermally grown on Fe-15Cr steels in O-16(2) followed by O-18(2) and in H-2 O-16 followed by (H2O)-O-18. SIMS oxygen isotope profiles showed that oxidation in oxygen proceeded by outward chromium transport, whereas oxidation in H2O involved inward transport of hydroxide species. Adhesion measurements using room temperature tensile testing could quantify adhesion energy: 20 J m(-2) for O-2-grown scales and 80 j m(-2) for scales formed in H2O, a result of this mass transport inversion. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：671 / 674

页数：4

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