Microstructure and properties of ultrafine grained AlCrFeCoNi/WC cemented carbides

In this paper, the effect of heat treatment on the microstructure and properties of a 0.8 μm WC–10%Co ultrafine cemented carbide was studied. The results show that the microstructural differences in ultrafine WC–Co cemented carbides without and with heat treatment are mainly reflected in the Co phase. For conventional cemented carbides, the hardness and wear resistance can be increased only at the expense of the toughness and strength. An ultrafine-grained WC–Co cemented carbide with good hardness and toughness can be obtained by strengthening the Co phase through an appropriate heat treatment process, and the service life of the ultrafine-grained WC–Co cemented carbide can be improved under actual cutting conditions.

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Effects of partial substitution of copper for cobalt on the microstructure and properties of ultrafine-grained WC-Co cemented carbides

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2017.11.006 ◽

2018 ◽

Vol 735 ◽

pp. 43-50 ◽

Cited By ~ 7

Author(s):

Jianfeng Li ◽

Jigui Cheng ◽

Pengqi Chen ◽

Wenchao Chen ◽

Bangzheng Wei ◽

...

Keyword(s):

Partial Substitution ◽

Cemented Carbides ◽

Microstructure And Properties ◽

Ultrafine Grained

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Fabrication of ultrafine-grained ZrC-Co cemented carbides with superior sliding-wear resistance from micrometre starting powders

Ceramics International ◽

10.1016/j.ceramint.2021.05.209 ◽

2021 ◽

Author(s):

Victor Zamora ◽

Fernando Guiberteau ◽

Angel L. Ortiz

Keyword(s):

Wear Resistance ◽

Sliding Wear ◽

Cemented Carbides ◽

Ultrafine Grained

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Effect of VC Addition on Microstructure and Mechanical Properties of Ultrafine Grained WC-Co Alloys

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.893.444 ◽

2014 ◽

Vol 893 ◽

pp. 444-448 ◽

Cited By ~ 1

Author(s):

Xue Mei Liu ◽

Xiao Yan Song ◽

Hai Bin Wang ◽

Yang Gao ◽

Yao Wang

Keyword(s):

Mechanical Properties ◽

Composite Powder ◽

Cemented Carbides ◽

Comprehensive Properties ◽

Microstructure And Mechanical Properties ◽

Plasma Sintering ◽

Ultrafine Grained ◽

Spark Plasma ◽

Co Alloys

This study was focused on the effect of VC addition on the microstructure and mechanical properties of the prepared ultrafine grained cemented carbides. VC was added to the rawoxide materials which were synthesized to the WC-Co composite powder by the in-situ reduction and carbonization process. The ultrafine grained WC-Co alloys were fabricated by the spark plasma sintering technique using the prepared WC-Co composite powder. The phase constitution, microstructure characteristics and mechanical properties of the sintered ultrafine grained cemented carbides were analyzed quantitatively. The study proposed that VC plays a significant role in decreaseing the grain size of the prepared WC-Co alloy. The ultrafine grained WC-Co alloy with high comprehensive properties can be obtained as an appropriate addition of VC in the developed process.

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