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  • Studies on the improvement in wear resistance of WC-Co composites by adding a pseudo-elastic TiNi phase and relevant issues
  • PAN, Yang
  • English
  • WC-Co composite
    TiNi alloy
  • Dec 19, 2011 10:26 AM
  • Thesis
  • English
  • Adobe PDF
  • 4279007 bytes
  • In this study, pseudo-elastic TiNi alloy was added as a second phase to the Co matrix of WC-Co composite, which has found many applications in forms of coating, hardfacing overlay and bulk against wear. It was demonstrated that the added TiNi phase markedly enhanced the wear resistance of WC-60%wtCo composite. However, the beneficial effect of the TiNi phase was diminished when the amount of added TiNi exceeded 10wt% due to the formation of pores. The TiNi alloy was also directly used as the matrix to fabricate WC-TiNi and TiC-TiNi composites. The TiNi-matrix composites exhibited higher wear resistance than WC-Co composite when the volume fraction of the metal matrix was high, e.g., 60vol%. However, the situation was reversed when the volume fraction of the metal matrix was lowered. It appears that the formation of pores was also responsible for the deterioration of the TiNi-matrix composites.
  • Enhancing the wear resistance of sintered WC-Co composite by adding pseudo-elastic TiNi constituent
  • Master's
  • Master of Science
  • Department of Chemical and Materials Engineering
  • Spring 2012
  • Li, Dongyang (Chemical and Materials Engineering)
  • Prasad, Vinay (Chemical and Materials Engineering)
    Eadie, Reginald (Chemical and Materials Engineering)
    Xia, Zihui (Mechanical Engineering)

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