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Volume 17 Issue 4
Jul.  2021
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Liu Ning, Jiang Yong, Lu Qingrong, Xiong Weihao, Cui Kun, Hu Zhenhua. EFFECT OF CHEMICAL COMPOSITION ON THE FRACTURE TOUGHNESS OF Ti(C, N) BASED CERMETS[J]. Powder Metallurgy Technology, 1999, 17(4): 269-272.
Citation: Liu Ning, Jiang Yong, Lu Qingrong, Xiong Weihao, Cui Kun, Hu Zhenhua. EFFECT OF CHEMICAL COMPOSITION ON THE FRACTURE TOUGHNESS OF Ti(C, N) BASED CERMETS[J]. Powder Metallurgy Technology, 1999, 17(4): 269-272.
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EFFECT OF CHEMICAL COMPOSITION ON THE FRACTURE TOUGHNESS OF Ti(C, N) BASED CERMETS

  • 1. Hefei University of Technology, Hefei 230009;

  • 2. Huazhong University of Science and Technology, Wuhan 430074

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  • Received Date: July 13, 1999
  • Available Online: July 19, 2021
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  • The effect of chemical composition on the fracture toughness and microstructure has been studied. The results have shown that the cermet is of high fracture toughness value when the contents of tungsten carbide and molybdenum are 10% and 15% respectively. The fracture toughness decreases linely with increasing the content of NbC,TaC or (Nb, Ta) C. Low wettability of metals for ceramics is the main reason of low fracture toughness value.
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