Oxidation Behavior of Binary Aluminium-Rich Fe-Al Alloys with a Fine-Scaled, Lamellar Microstructure

被引：11

作者：

Scherf, A. ^{[1
]}

Janda, D. ^{[1
]}

Yazdi, M. Baghaie ^{[2
]}

Li, X. ^{[3
]}

Stein, F. ^{[3
]}

Heilmaier, M. ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Appl Mat, D-76021 Karlsruhe, Germany

[2] Tech Univ Darmstadt, Inst Mat Sci, Darmstadt, Germany

[3] Max Planck Inst Eisenforsch GmbH, Struct & Nano Micromech Mat, D-40074 Dusseldorf, Germany

来源：

OXIDATION OF METALS | 2015年 / 83卷 / 5-6期

关键词：

FeAl; FeAl2; Oxidation; Microstructure; HIGH-TEMPERATURE OXIDATION; ISOTHERMAL OXIDATION; IRON; ZR; STRESS; GROWTH; INTERMETALLICS; DIFFRACTION; ALPHA-AL2O3; KINETICS;

D O I：

10.1007/s11085-015-9535-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The oxidation behavior of binary Fe-Al alloys with an aluminum content between 58 and 64 at.% was studied by isothermal and cyclic oxidation experiments in a temperature range of 900-1000 A degrees C. The parabolic rate constants were determined to be comparable to those of B2-ordered Fe-48Al. All investigated alloys exhibited a fine-scaled, lamellar microstructure (< 300 nm lamellar spacing), which was a result of the eutectoid decomposition of the high-temperature phase Fe5Al8 into FeAl and FeAl2. None of these two phases showed a preferential oxidation. At 900 A degrees C theta-Al2O3 formed, whereas at 1000 A degrees C a transformation of the initially formed theta-Al2O3 to the slower growing and passivating alpha-Al2O3 was confirmed by grazing incidence X-ray diffraction measurements.

引用

页码：559 / 574

页数：16

共 18 条

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A. Scherf
D. Janda
M. Baghaie Yazdi
X. Li
F. Stein
M. Heilmaier
Oxidation of Metals, 2015, 83 : 559 - 574
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Pint, BA
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MATERIALS, 2019, 12 (03)
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