Microstructures of cemented carbides

被引：115
作者：
Andrén, HO
机构：
[1] Chalmers Univ Technol, Dept Expt Phys, S-41296 Gothenburg, Sweden
[2] Univ Gothenburg, SE-41296 Gothenburg, Sweden
来源：
MATERIALS & DESIGN | 2001年 / 22卷 / 06期
关键词：
APFIM; AEM; thermo-cale; solid state sintering; liquid state sintering; segregation;
D O I：
10.1016/S0261-3069(01)00006-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An overview is given of the detailed microstructure of cemented carbides of types WC-Co and WC-MC-Co. and of titanium carbo-nitride based cemented carbides (cermets). The manufacturing process is first described, and the changes in composition that occur during manufacturing are discussed. The microstructure and its formation during sintering is then described for the three types of cemented carbides. In particular is treated: Grain boundary segregation in the carbide skeleton: Control of solid solution hardening in the binder; Segregation in the binder; Formation of a core-rim structure in hard phase grains; Formation of an inner rim during solid state sintering; Slow diffusion of metal atoms in hard phase; Retention of phases far from equilibrium; Approach to paraequilibrium during sintering. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：491 / 498
页数：8
相关论文
共 21 条
[11]  
JONSSON H, 1969, J I MET, V97, P281
[12]   ATOM-PROBE ANALYSIS OF A COMMERCIAL CERMET [J].
LINDAHL, P ;
ROLANDER, U ;
ANDREN, HO .
SURFACE SCIENCE, 1991, 246 (1-3) :319-322
[13]  
Lindahl P., 1993, International Journal of Refractory & Hard Metals, V12, P115, DOI 10.1016/0263-4368(93)90060-S
[14]   Microstructure of model cermets with high Mo or W content [J].
Lindahl, P ;
Gustafson, P ;
Rolander, U ;
Stals, L ;
Andrén, HO .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 1999, 17 (06) :411-421
[15]  
Lindahl P., 1992, Journal of Hard Materials, V3, P259
[16]  
ROEBUCK B, 1989, REUTTE TIROL, V2, P1
[17]   ATOM PROBE MICROANALYSIS OF THE GAMMA-PHASE IN CEMENTED CARBIDE MATERIALS [J].
ROLANDER, U ;
ANDREN, HO .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1988, 105 :283-287
[18]  
TANIUCHI T, 1997, REUTTE TIROL, V2, P644
[19]  
WHITEFIELD DJ, 1997, REUTTE TIROL, V2, P477
[20]   WC-Co based cemented carbides with large Cr3C2 additions [J].
Zackrisson, J ;
Jansson, B ;
Uphadyaya, GS ;
Andrén, HO .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 1998, 16 (4-6) :417-422
123