Kinetics of high-temperature oxidation of (Ti,Ta)(C,N)-based cermets

被引：46

作者：

Chicardi, E. ^{[1
,2
]}

Cordoba, J. M. ^{[1
,3
]}

Gotor, F. J. ^{[1
]}

机构：

[1] CSIC US, Inst Ciencia Mat Sevilla, Seville 41092, Spain

[2] Univ Tecn Federico Santa, Dept Ingn Met & Mat, Valparaiso 1680, Chile

[3] Univ Seville, Dept Quim Inorgan, E-41012 Seville, Spain

来源：

CORROSION SCIENCE | 2016年 / 102卷

关键词：

Ceramic matrix composite; Titanium; SEM; Hot corrosion; Kinetic parameters; Oxidation; CORE-RIM MICROSTRUCTURE; ISOTHERMAL OXIDATION; WC-CO; BEHAVIOR; HARD; MECHANISMS; RESISTANCE; DIFFUSION; CERAMICS; COATINGS;

D O I：

10.1016/j.corsci.2015.10.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The kinetics of the high-temperature oxidation of titanium-tantalum carbonitride-based cermets with different Ti/Ta ratios was studied. Isothermal oxidation tests were conducted under static air for 48 h at temperatures between 700 degrees C and 1200 degrees C. The oxidation satisfied the parabolic kinetics, characteristic of the existence of a protective oxide layer. The apparent activation energy suggests the rate-controlling process during oxidation is the simultaneous inward and outward diffusion of oxygen and titanium, respectively, through the formed protective layer, consisting mainly of a rutile phase. A higher Ta(V) content in the rutile decreased the oxygen diffusivity due to the reduction of oxygen vacancy concentration. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：168 / 177

页数：10

共 43 条

[1] Oxidation behaviour of TaxTi1-xC and TaxTi1-xCyN1-y whiskers [J].

Ahlén, N ;

Johnsson, M ;

Nygren, M .

THERMOCHIMICA ACTA, 1999, 336 (1-2) :111-120

[2] Influence of heat treatment on the high temperature oxidation mechanisms of an Fe-TiCN cermet [J].

Alvaredo, P. ;

Abajo, C. ;

Tsipas, S. A. ;

Gordo, E. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 591 :72-79

[3] Kinetics of isothermal oxidation of WC-20Co hot-pressed compacts in air [J].

Aly, S. T. ;

Amin, Sh K. ;

El Sherbiny, S. A. ;

Abadir, M. F. .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2014, 118 (03) :1543-1549

[4] Comparison of the oxidation behaviour of WC-Co and WC-Ni-Co-Cr cemented carbides [J].

Aristizabal, M. ;

Sanchez, J. M. ;

Rodriguez, N. ;

Ibarreta, F. ;

Martinez, R. .

CORROSION SCIENCE, 2011, 53 (09) :2754-2760

[5] High-temperature oxidation of Fe3Al-based iron aluminides in oxygen [J].

Babu, N ;

Balasubramaniam, R ;

Ghosh, A .

CORROSION SCIENCE, 2001, 43 (12) :2239-2254

[6]

Baker O.H., 1992, ASM HDB

[7] Influence of WC replacement by TiC and (Ta,Nb)C on the oxidation resistance of Co-based cemented carbides [J].

Barbatti, Carla ;

Garcia, Jose ;

Brito, Pedro ;

Pyzalla, Anke Rita .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2009, 27 (04) :768-776

[8] Oxidation behavior of WC-Co [J].

Basu, SN ;

Sarin, VK .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 209 (1-2) :206-212

[9] OXIDATION BEHAVIOR OF HARD AND BINDER PHASE MODIFIED WC-10CO CEMENTED CARBIDES [J].

BHAUMIK, SK ;

BALASUBRAMANIAM, R ;

UPADHYAYA, GS ;

VAIDYA, ML .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1992, 11 (21) :1457-1459

[10]

Butchereit E, 2001, J AM CERAM SOC, V84, P2184, DOI 10.1111/j.1151-2916.2001.tb00985.x

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