한국분말야금학회:학술대회논문집 (Proceedings of the Korean Powder Metallurgy Institute Conference)

한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
권호 표지

Effect of TiC Content on Oxidation Behavior of Sintered WC-TiC-TaC Alloys

  • Tanaka, Hiroki (Nippon Tungsten Co., Ltd.) ;
  • Mouri, Shigeki (Nippon Tungsten Co., Ltd.) ;
  • Nakahara, Kenji (Nippon Tungsten Co., Ltd.) ;
  • Sano, Hideaki (Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University) ;
  • Zheng, Guo Bin (Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University) ;
  • Uchiyama, Yasuo (Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University)
  • 발행 : 2006.09.24
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초록

The effect of TiC content on oxidation behavior of the sintered WC-TiC-TaC alloys with 2 mass% TaC and different TiC amounts of 3-45 mass% was investigated through oxidation tests in air at 973K. As a result of the tests, it was revealed that with increasing TiC content in the alloys, mass changes caused by oxidation and thickness of the scale decreased. Thus, it is considered that the main component of the scales changed gradually from $WO_3$ to $TiO_2$ with increasing TiC content in the alloys, and oxygen diffusion through the scale to the alloys was inhibited gradually.

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