期刊
SCRIPTA MATERIALIA
卷 83, 期 -, 页码 17-20出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2014.03.026
关键词
Cemented carbides; Toughness; Strength; Nanoprecipitates
类别
资金
- Karlsruhe Nano Micro Facility
- Ministry of Education and Science of the Russian Federation in the framework of the Increase Competitiveness Program of MISIS
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.
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