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Comparison of sintering behavior and mechanical properties between WC−8Co and WC−8Ni hard materials produced by high-frequency induction heating sintering

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Abstract

The sintering behavior and mechanical properties of WC-Co and WC-Ni hard materials produced by high-frequency induction-heating sintering (HFIHS) were compared using ultra fine WC, WC-Co, and WC-Ni powders. HFIHS allows very quick densification to near theoretical density and prohibits grain growth in nano-structured materials. Highly dense WC, WC-Co, and WC-Ni with a relative density of up to 99.2% could be obtained with simultaneous application of 60 MPa pressure and induced current within 2 min without significant change in grain size. The hardness and fracture toughness of the dense WC, WC-Co, and WC-Ni composites produced by HFIHS were also investigated.

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Authors and Affiliations

  1. Department of Advanced Materials Engineering, Automobile Hi-Technology Research Center, Engineering Research Institute, Chonbuk National University, 664-14, Deokjindong 1-ga, Deokjin-gu, Jeonju-si, 560-756, Jeonbuk, Korea

    Hwan-Cheol Kim & In-Jin Shon

  2. Metal Processing Research Center, Korea Institute of Science and Technology, Cheongnyangi-dong, Dongdaemun-gu, P. O. Box 131, 136-791, Seoul, Korea

    Jin-Kook Yoon & Jung-Mann Doh

Authors
  1. Hwan-Cheol Kim
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  2. In-Jin Shon
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  3. Jin-Kook Yoon
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  4. Jung-Mann Doh
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Correspondence to In-Jin Shon.

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Kim, HC., Shon, IJ., Yoon, JK. et al. Comparison of sintering behavior and mechanical properties between WC−8Co and WC−8Ni hard materials produced by high-frequency induction heating sintering. Met. Mater. Int. 12, 141–146 (2006). https://doi.org/10.1007/BF03027470

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