Strengthening zones in the Co matrix of WC-Co cemented carbides

被引：106

作者：

Konyashin, I. ^{[1
,7
]}

Lachmann, F. ^{[1
]}

Ries, B. ^{[1
]}

Mazilkin, A. A. ^{[2
,3
]}

Straumal, B. B. ^{[2
,4
,5
]}

Kuebel, Chr. ^{[4
]}

Llanes, L. ^{[6
]}

Baretzky, B. ^{[4
]}

机构：

[1] Element Six GmbH, Element Hard Mat 6, D-36151 Burghaun, Germany

[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

[3] Max Planck Inst Intelligente Syst, D-70569 Stuttgart, Germany

[4] Karlsruher Inst Technol, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany

[5] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia

[6] Univ Politecn Cataluna, E-08028 Barcelona, Spain

[7] Natl Univ Sci & Technol MISIS, Moscow 119049, Russia

来源：

SCRIPTA MATERIALIA | 2014年 / 83卷

关键词：

Cemented carbides; Toughness; Strength; Nanoprecipitates; REINFORCED BINDER; TUNGSTEN CARBIDE; HARDMETALS; HARDNESS; ALLOYS; GRADES; AGE; MICROSTRUCTURE;

D O I：

10.1016/j.scriptamat.2014.03.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

For conventional structural and tool materials, in particular WC-Co cemented carbides, hardness and wear-resistance can usually be increased only at the expense of toughness and strength. For the first time we have achieved a dramatically increased combination of hardness, wear-resistance, fracture toughness and strength as a result of precipitation of extremely fine nanoparticles in the cobalt binder of cemented carbides. These nanoparticles are similar to 3 nm in size, coherent with the Co matrix and consist of a metastable phase. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：17 / 20

页数：4

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