Nuclear Engineering and Technology

  • 제51권1호
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  • Pages.190-197
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  • 2019
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Room-temperature tensile strength and thermal shock behavior of spark plasma sintered W-K-TiC alloys

  • Shi, Ke (Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University) ;
  • Huang, Bo (Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University) ;
  • He, Bo (Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University) ;
  • Xiao, Ye (Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University) ;
  • Yang, Xiaoliang (Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University) ;
  • Lian, Youyun (Southwest Institute of Physics) ;
  • Liu, Xiang (Southwest Institute of Physics) ;
  • Tang, Jun (Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University)
  • 투고 : 2018.07.27
  • 심사 : 2018.09.25
  • 발행 : 2019.02.25
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초록

W-K-TiC alloys with different titanium carbide concentrations (0.05, 0.1, 0.25, 0.5, 1, 2) wt.% were fabricated through Mechanical Alloying and Spark Plasma Sintering. The effects of the addition of nano-scaled TiC particles on the relative density, Vickers micro-hardness, microstructure, crystal information, thermal shock resistance, and tensile strength were investigated. It is revealed that the doped TiC nano-particles located at the grain boundaries. The relative density and Vickers micro-hardness of W-K-TiC alloys was enhanced with TiC addition and the highest Vickers micro-hardness is 731.55. As the TiC addition increased from 0.05 to 2 wt%, the room-temperature tensile strength raised from 141 to 353 MPa. The grain size of the W-K-TiC alloys decreased sharply from $2.56{\mu}m$ to 330 nm with the enhanced TiC doping. The resistance to thermal shock damage of W-K-TiC alloys was improved slightly with the increased TiC addition.

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피인용 문헌

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  2. Mechanical Properties and Microstructure of W-6Ni-4Co Alloy by a Two-Step Sintering Process vol.9, pp.6, 2019, https://doi.org/10.3390/met9060680
  3. Modification of the interface and its influence on the performance of W-6 wt% TiC composite vol.819, 2021, https://doi.org/10.1016/j.msea.2021.141442