The effect of various oxide dispersions on the phase composition and morphology of Al2O3 scales grown on beta-NiAl

被引：165

作者：

Pint, BA ^{[1
]}

Treska, M ^{[1
]}

Hobbs, LW ^{[1
]}

机构：

[1] MIT,HH UHLIG CORROS LAB,CAMBRIDGE,MA 02139

来源：

OXIDATION OF METALS | 1997年 / 47卷 / 1-2期

关键词：

beta-NiAl; oxide dispersion; reactive elements; theta-Al2O3; phase transformation;

D O I：

10.1007/BF01682369

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A series of oxide-dispersed beta-NiAl alloys were oxidized in order to explore the effect of various cation dopants on the theta-alpha phase transformation in the Al2O3 scale and the effect of phase composition on the scale microstructure. Larger ions such as Y, Zr, La, and Hf appeared to slow the theta- to alpha-Al2O3 phase transformation, while a smaller ion, Ti, appeared to accelerate the transformation.

引用

页码：1 / 20

页数：20

共 37 条

[1] THE OXIDATION BEHAVIOR OF NIAL .1. PHASE-TRANSFORMATIONS IN THE ALUMINA SCALE DURING OXIDATION OF NIAL AND NIAL-CR ALLOYS [J].

BRUMM, MW ;

GRABKE, HJ .

CORROSION SCIENCE, 1992, 33 (11) :1677-&

[2] INFLUENCE OF SURFACE-AREA AND ADDITIVES ON THE THERMAL-STABILITY OF TRANSITION ALUMINA CATALYST SUPPORTS .1. KINETIC DATA [J].

BURTIN, P ;

BRUNELLE, JP ;

PIJOLAT, M ;

SOUSTELLE, M .

APPLIED CATALYSIS, 1987, 34 (1-2) :225-238

[3] TEM STUDIES OF OXIDIZED NIAL AND NI3AL CROSS-SECTIONS [J].

DOYCHAK, J ;

RUHLE, M .

OXIDATION OF METALS, 1989, 31 (5-6) :431-452

[4] TRANSIENT OXIDATION OF SINGLE-CRYSTAL BETA-NIAL [J].

DOYCHAK, J ;

SMIALEK, JL ;

MITCHELL, TE .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (03) :499-518

[5]

Doychak J., 1988, OXIDATION HIGH TEMPE, P41

[6]

DOYCHAK J, 1984, P 42 ANN M EL MICR S, P598

[7]

Doychak J.K, 1986, THESIS CASE W RESERV

[8]

DOYCHAK JK, 1984, MATER RES SOC S P, V39, P475

[9]

GRAHAM MJ, UNPUB CORROS SCI

[10]

GRAHAM MJ, 1994, ELECTROCHEMICAL SOC, V942, P837

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