Influence of Deep Cryogenic Treatment on Microstructures and Mechanical Properties of an Ultrafine-Grained WC-12Co Cemented Carbide

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• 作者：Hejia Zhang (1)
  Liqing Chen (1)
  Jing Sun (1)
  Wenguang Wang (2)
  Quanzhao Wang (3)
  
• 关键词：WC ; 12Co composite ; Cemented carbide ; Deep cryogenic treatment ; Mechanical properties ; Microstructure
• 刊名：Acta Metallurgica Sinica (English Letters)
• 出版年：2014
• 出版时间：October 2014
• 年：2014
• 卷：27
• 期：5
• 页码：894-900
• 全文大小：2,003 KB
• 参考文献：1. R. Bao, J.H. Yi, Y.D. Peng, H.Z. Zhang, A.K. Li, Trans. Nonferrous Met. Soc. China 22, 853 (2012) CrossRef
  2. R. Bao, J.H. Yi, Y.D. Peng, H.Z. Zhang, Trans. Nonferrous Met. Soc. China 23, 372 (2013) CrossRef
  3. S.X. Zhao, X.Y. Song, J.X. Zhang, X.M. Liu, Acta Metall. Sin. 43, 107 (2007). (in Chinese)
  4. A.Y.L. Yong, K.H.W. Seah, M. Rahman, Int. J. Adv. Manuf. Technol. 32, 638 (2007) CrossRef
  5. J. Gisip, R. Gazo, H.A. Stewart, J. Mater. Process. Technol. 209, 5117 (2009) CrossRef
  6. A.Y.L. Yong, K.H.W. Seah, M. Rahman, Int. J. Mach. Tools Manuf 46, 2051 (2006) CrossRef
  7. S.S. Gill, R. Singh, H. Singh, J. Singh, Int. J. Mach. Tools Manuf. 49, 256 (2009) CrossRef
  8. D.N. Collins, Heat Treat. Met. 23(2), 40 (1995)
  9. N.S. Kalsia, R. Sehgalb, V.S. Sharma, Mater. Manuf. Process. 25, 1077 (2010) CrossRef
  10. H.A. Stewart, Forest Prod. J. 54, 53 (2004)
  11. S.S. Gill, H. Singh, R. Singh, J. Singh, Int. J. Adv. Manuf. Technol. 48, 175 (2010) CrossRef
  12. T.V.S. Reddy, T. Sornakumar, M.V. Reddy, R. Venkatram, A. Senthilkumar, Mach. Sci. Technol. 13, 269 (2009) CrossRef
  13. J.S. Liu, Y.X. Pu, M.F. Tan, Hot Working Technol. 41(6), 184 (2012). (in Chinese)
  14. D. Thakur, B. Ramamoorthy, L. Vijayaraghavan, Mater. Lett. 62, 4403 (2008) CrossRef
  15. Y. Jiang, D. Chen, Mater. Sci. Eng. A 528, 1735 (2011) CrossRef
  16. Z.H. Chen, L. Fan, Y. Jiang, L.M. Wang, W. Peng, X.H. Zhou, Cem. Carbide 27(01), 1 (2010). (in Chinese)
  17. J.W. Wei, L.L. Tang, S.H. Li, X.C. Wu, Trans. Nonferrous Met. Soc. China 22, 2421 (2012) CrossRef
  18. T.V.S. Reddy, T. Sornakumar, M.V. Reddy, R. Venkatram, Int. J. Refract. Met. Hard Mater. 27(1), 46 (2009)
  19. T.V.S. Reddy, T. Sornakumar, M.V. Reddy, R. Venkatram, Cryogenics 48(9-0), 458 (2008)
  
• 作者单位：Hejia Zhang (1)
  Liqing Chen (1)
  Jing Sun (1)
  Wenguang Wang (2)
  Quanzhao Wang (3)
  
  1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China
  2. School of Mechanical Engineering, Liaoning Shihua University, Fushun, 113001, China
  3. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
  
• ISSN：2194-1289

文摘

Effect of deep cryogenic treatment (DCT) on the microstructures and mechanical behavior of ultrafine-grained WC-12Co cemented carbide was investigated by using XRD, SEM, and DSC. The phase transformations of pure Co and binder phase Co in cemented carbide were analyzed in detail to correlate the strengthening mechanism with its α?→?em class="a-plus-plus">ε phase transition. The results show that DCT resulted in a slight increase in hardness and bending strength of ultrafine-grained WC-12Co cemented carbide. For the ultrafine-grained cemented carbide after DCT, there is no significant change in the microstructure and the elemental distribution of the cemented carbides, but the fractured morphology shows a feature of plastic deformation. In the cases of pure Co and the binder phase Co in WC-12Co cemented carbide, they exhibit different features of phase transformation. The improvement of mechanical property of cemented carbide can be attributed to the increased amount of ε-Co in WC-12Co composites after DCT.