期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 509, 期 4, 页码 1236-1243出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.09.202
关键词
Ultrafine WC-10Co alloys; LaB6; Microstructure; Mechanical properties
资金
- National Natural Science Foundation of China [50823006, 50825102, 50721003]
- Hunan Provincial Natural Science Foundation [10JJ6066]
- Hunan Scientific Program [2009RS3025]
The ultrafine grain WC-10Co alloys were prepared by the planetary ball milling method and low pressure sintering The effects of LaB6 addition on the microstructure and mechanical properties of the based alloys were investigated by X-ray diffraction scanning electron microscope and mechanical property testing It has been shown that the grain growth and regularization of WC particles occur simultaneous with the addition of LaB6 Adding suitable amount of LaB6 improves the density hardness and fracture toughness of the ultrafine WC-10Co alloys and decreases the volume fraction of Co3W3C phase in ultrafine WC-10Co alloys (C) 2010 Elsevier B V All rights reserved
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