Skip to main content
SpringerLink
Log in

Effect of Mo2C on the Microstructure and Mechanical Properties of (Ti, W)C–Ni Cermets

  • Published:
Powder Metallurgy and Metal Ceramics Aims and scope

(Ti, W)C–Ni cermets with different contents of Mo2C were produced by the spark plasma sintering (SPS) method. The grain size (GS), composition of ceramic phases, and mechanical properties of the sintered cermets were investigated. The amount of Mo2C had a significant influence on the microstructure and mechanical properties of as-prepared cermets. GS and fracture toughness (KIc) were decreased as a result of increasing the amount of Mo2C. By increasing the amount of Mo2C, the transverse rupture strength (TRS) and hardness (HRA) were enhanced. However, above 10 wt.%, the TRS was reduced. The conventional black cores observed by field-emission scanning electron microscopy (FE–SEM) in backscattered electron imaging (BSE) in (Ti, W)C–Ni cermets will be partially turned into some white cores which contain higher Mo, except for Ti and W elements, when content of Mo2C reaches ~15 wt.%. Batch mechanical tests indicate that cermets with some white cores have refined microstructure and higher hardness, but relatively lower transverse rupture strength (TRS) and fracture toughness (KIc) at room temperature.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  1. P. Ettmayer, H. Kolasks, W. Lengauer, et al., “Ti(C, N) cermets--metallurgy and properties,” Int. J. Refract. Met. Hard Mater. , 13, 343–351(1995).

    Article  Google Scholar 

  2. D. Mari, S. Bolognini, G. Feusier, et al., “TiMoCN based cermets. Part II. Microstructure and room temperature mechanical properties,” Int. J. Refract. Met. Hard Mater., 21, 47–53 (2003).

    Article  Google Scholar 

  3. Yuemei Wu, Ji Xiong, Zhixing Guo, et al., “Microstructure and fracture toughness of Ti(C0.7N0.3) –WC– Ni cermets,” Int. J. Refract. Met. Hard Mater., 29, 85–89(2011)

    Article  Google Scholar 

  4. W. T. Kwon, J. S. Park, and S. Kang, “Effect of group IV elements on the cutting characteristics of Ti(C, N) cermet tools and reliability analysis,” J. Mater. Proc. Tech., 166, 9–14 (2005).

    Article  Google Scholar 

  5. Y. J. Park, S. W. Kim, and S. Kang, “The formation of a solid solution band at the surface of Ti (CN)-based cermets.,” Mater. Sci. Eng., A291, 198–206 (2000).

    Article  Google Scholar 

  6. Jun Qu, Weihao Xiong, Dameng Ye, et al., “Effect of WC content on the microstructure and mechanical properties of Ti(C0.5 N0.5)–WC–Mo–Ni cermets,” Int. J. Refract. Met. Hard Mater., 28, 243–249 (2010).

  7. S. Y. Ahn and S. Kang, “Effect of WC particle size on microstructure and rim composition in the Ti (C0.7 N0.3)–WC–Ni system,” Scripta. Mater., 55, 1015–1018 (2006).

    Article  Google Scholar 

  8. Yan Li, Ning Liu, Xiaobo Zhang, and Chunlan Rong, “Effect of WC content on the microstructure and mechanical properties of (Ti, W)(C, N)–Co cermets,” Int. J. Refract. Met. Hard Mater., 26, 33–40 (2008).

  9. J. C. LaSalvia, D. K. Kim, and M. A. Meyers, “Effect of Mo on microstructure and mechanical properties of TiC–Ni-based cermets produced by combustion synthesis–impact forging technique,” Mater. Sci. Eng., A206, 71–80 (1996).

    Article  Google Scholar 

  10. Yan Li, Ning Liu, Xiaobo Zhang, and Chunlan Rong, “Effect of Mo addition on the microstructure and mechanical properties of ultrafine grade TiC–TiN–WC–Mo2C–Co cermets,” Int. J. Refract. Met. Hard Mater., 26, 190–196 (2008).

  11. S. Ahn and S. Kang, “Effect of various carbides on the dissolution behavior of Ti (C0.7 N0.3) in a Ti (C0.7 N0.3) –30Ni system,” Int. J. Refract. Met. Hard Mater., 19, 539–545 (2001).

    Article  Google Scholar 

  12. S. Park and S. Kang, “Toughened ultrafine (Ti, W) (CN)–Ni cermets,” Scripta Mater., 52, 129–133 (2005).

    Article  Google Scholar 

  13. T. Cutard, T. Viatte, G. Feusier, and W. Benoit, “Microstructure and high temperature mechanical properties of TiC0.7 N0.3–Mo2C–Ni cermets,” Mater. Sci. Eng., A209, 218–227 (1996).

    Article  Google Scholar 

  14. Shiquan Zhou, Wei Zhao, and Weihao Xiong, “Microstructure and properties of the cermets based on Ti(C,N),” Int. J. Refract. Met. Hard Mater., 27, 26–32 (2009).

  15. Jong-Ku Park and Seung-Tae Park, “Densification of TiN-Ni cermets by improving wettability of liquid nickel on TiN grain surface with addition of Mo2C,” Int. J. Refract. Met. Hard Mater., 17, 295–299 (1999).

  16. Xiaobo Zhang, Ning Liu, and Chunlan Rong, “Effect of molybdenum content on the microstructure and mechanical properties of ultrafine Ti(C, N) based cermets,” Mater. Characterization, 59, 1690–1696 (2008).

    Article  Google Scholar 

  17. S. Y. Ahn and S. Kang, “Formation of core/rim structures in Ti(C, N)-WC-Ni cermets via a dissolution and precipitation process,” J. Am. Ceram. Soc., 83, 1489–1494 (2000).

    Article  Google Scholar 

  18. P. Lindahl, P. Guatafson, U. Rolander, et al., “Microstructure of model cermets with high Mo or W content,” Int. J. Refract. Met. Hard Mater., 17, 411–421 (1999).

    Article  Google Scholar 

  19. Ma Qian and L. C. Lim , “Microstructural evolution in the phase mixtures of Ti(C, N)-Mo at 1600 degree,” Mater. Sci. Eng., A264, 39–46 (1999)

    Google Scholar 

Download references

Acknowledgements

The authors acknowledge with thanks the support of this research by the Natural Science Foundation of Education Department of Anhui Province (No. KJ2012B148), the Natural Science Foundation of Hefei University (No. 13RC09), and the National Natural Science Foundation of China (No. 51102073).

Author information

Authors and Affiliations

  1. Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, China

    Chengliang Han

  2. Department of Chemical and Material Engineering, Hefei University, Hefei, China

    Changan Tian

Authors
  1. Chengliang Han
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Changan Tian
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Chengliang Han.

Additional information

Published in Poroshkovaya Metallurgiya, Vol. 53, No. 1–2 (495), pp. 73–80, 2014.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Han, C., Tian, C. Effect of Mo2C on the Microstructure and Mechanical Properties of (Ti, W)C–Ni Cermets. Powder Metall Met Ceram 53, 57–63 (2014). https://doi.org/10.1007/s11106-014-9587-1

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11106-014-9587-1

Keywords

Search

Navigation