Corrosion behaviour of WC hardmetals with nickel-based binders

被引：78

作者：

Ferro Rocha, A. M. ^{[1
]}

Bastos, A. C. ^{[1
]}

Cardoso, J. P. ^{[1
]}

Rodrigues, F. ^{[2
]}

Fernandes, C. M. ^{[1
]}

Soares, E. ^{[2
]}

Sacramento, J. ^{[2
,3
]}

Senos, A. M. R. ^{[1
]}

Ferreira, M. G. S. ^{[1
]}

机构：

[1] Univ Aveiro, Dept Mat & Ceram Engn, CICECO Aveiro Inst Mat, P-3810193 Aveiro, Portugal

[2] DURIT Met Portuguesa Tungstenio Lda, Arruamento C Zona Ind, P-3854909 Albergaria A Velha, Portugal

[3] Univ Aveiro, ESTGA, Rua Comandante Pinho & Freitas, P-3750127 Agueda, Portugal

来源：

CORROSION SCIENCE | 2019年 / 147卷

关键词：

Hardmetals; WC; Metal matrix composites; EIS; CO HARDMETALS; ANODIC POLARIZATION; MECHANICAL CHARACTERIZATION; ELECTROCHEMICAL-BEHAVIOR; CEMENTED CARBIDES; GRAIN-SIZE; NI; COMPOSITES; ADDITIONS; TOUGHNESS;

D O I：

10.1016/j.corsci.2018.11.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cobalt is the standard binder in tungsten carbide (WC) hardmetals due to its compatibility with the WC phase, resulting in composites with exceptional hardness and wear resistance. However, their corrosion resistance is not satisfactory in many applications, leading to the early deterioration and failure of tools and equipment. In this work, the corrosion of WC hardmetals with three alternative binders (FeCoNi, NiCrCoMo and NiCrMo) is compared with a benchmark WC-Co composite, using electrochemical techniques such as open circuit potential (OCP) monitoring, polarisation curves and electrochemical impedance spectroscopy (EIS), assisted by scanning electron microscopy (SEM).

引用

页码：384 / 393

页数：10

共 42 条

[1] IDENTIFICATION OF OPTIMUM BINDER PHASE COMPOSITIONS FOR IMPROVED WC HARD METALS [J].

ALMOND, EA ;

ROEBUCK, B .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1988, 105 :237-248

[2] Comparison of the friction and wear behaviour of WC-Ni-Co-Cr and WC-Co hardmetals in contact with steel at high temperatures [J].

Aristizabal, M. ;

Ardila, L. C. ;

Veiga, F. ;

Arizmendi, M. ;

Fernandez, J. ;

Sanchez, J. M. .

WEAR, 2012, 280 :15-21

[3]

Bardal E., 2004, Corrosion Protection, DOI [10.1007/b97510, DOI 10.1007/B97510]

[4] Effect of Cr addition on solid state sintering of WC-Co alloys [J].

Bounhoure, V. ;

Lay, S. ;

Coindeau, S. ;

Norgren, S. ;

Pauty, E. ;

Missiaen, J. M. .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2015, 52 :21-28

[5] THE ANALYSIS OF ELECTRODE IMPEDANCES COMPLICATED BY THE PRESENCE OF A CONSTANT PHASE ELEMENT [J].

BRUG, GJ ;

VANDENEEDEN, ALG ;

SLUYTERSREHBACH, M ;

SLUYTERS, JH .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 176 (1-2) :275-295

[6]

Canister W., 2007, MAT SCI ENG INTRO, DOI [10.1016/0025-5416(87)90343-0, DOI 10.1016/0025-5416(87)90343-0]

[7] The influence of pH on sliding wear of WC-based materials [J].

Engqvist, H ;

Beste, U ;

Axén, N .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2000, 18 (2-3) :103-109

[8]

Ettmayer P., 2014, COMPREHENSIVE HARD M, P4, DOI [10.1016/B978-0-08-096527-7.00001-5, DOI 10.1016/B978-0-08-096527-7.00001-5]

[9] Composites from WC powders sputter-deposited with iron rich binders [J].

Femandes, C. M. ;

Senos, A. M. R. ;

Vieira, M. T. ;

Fernandes, J. V. .

CERAMICS INTERNATIONAL, 2009, 35 (04) :1617-1623

[10] WC-stainless steel hardmetals [J].

Fernande, C. M. ;

Rocha, A. ;

Cardoso, J. P. ;

Bastos, A. C. ;

Soares, E. ;

Sacramento, J. ;

Ferreira, M. G. S. ;

Senos, A. M. R. .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2018, 72 :21-26

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