Improving Fe3Al alloy resistance against high temperature oxidation by pack cementation process

被引：23

作者：

Juzon, Piotr

Ziemnicka, Marta

Chevalier, Sebastien

Przybylski, Kazimierz

Larpin, Jean Pierre

机构：

[1] CNRS, Lab Rech React Solides, UMR 5613, F-21078 Dijon, France

[2] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Dept Solid State Chem, PL-30059 Krakow, Poland

[3] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Dept Special Ceram, PL-30059 Krakow, Poland

来源：

APPLIED SURFACE SCIENCE | 2007年 / 253卷 / 11期

关键词：

oxidation resistance; iron aluminide alloys; protective coatings; Zr doping effect;

D O I：

10.1016/j.apsusc.2006.10.072

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The paper presents the results of oxidation tests of Fe3Al-based alloys containing additions of Cr, Zr, B, and C, with and without an aluminide coating. The coating was formed by a pack cementation process in which the surface of material got enriched in aluminum. The Al-rich layer was intended to enhance the tendency of Al2O3 formation. The slow-growirig Al2O3 scale provides the best corrosion protection for structural materials at high temperatures. The cyclic oxidation tests were performed in laboratory air at 1373 K. The structure and composition of oxide scales as well as their adherence were evaluated and compared for the materials with and without alummide coatings. Surface enrichment in aluminum and effect minor addition of Zr on oxidation behavior was discussed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：4928 / 4934

页数：7

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