Applied Microscopy

  • 제45권1호
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  • Pages.32-36
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  • 2015
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  • 2287-5123(pISSN)
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  • 2287-4445(eISSN)
한국현미경학회 (Korean Society of Microscopy)
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Microstructural Features of Multicomponent FeCoCrNiSix Alloys

  • Kong, Kyeong Ho (Center for Non-crystalline Materials, Department of Materials Science and Engineering, Yonsei University) ;
  • Kim, Kang Cheol (Center for Non-crystalline Materials, Department of Materials Science and Engineering, Yonsei University) ;
  • Kim, Won Tae (Department of Optical Engineering, Cheongju University) ;
  • Kim, Do Hyang (Center for Non-crystalline Materials, Department of Materials Science and Engineering, Yonsei University)
  • 투고 : 2015.03.24
  • 심사 : 2015.03.26
  • 발행 : 2015.03.30
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초록

The microstructural features of FeCoCrNi, FeCoCrNiAl and FeCoCrNiSix (x=0, 5, 10, 15, 20) alloys have been investigated in the present study. The microstructure of FeCoCrNi alloy changes dramatically with equiatomic addition of Al. The fcc irregular shaped grain structure in the as-cast FeCoCrNi alloy changes into the bcc interconnected structure with phase separation of Al-Ni rich and Cr-Fe rich phases in the as-cast FeCoCrNiAl alloy. The microstructure of FeCoCrNi alloy changes with the addition of Si. With increasing the amount of Si, the fcc structure of the grains is maintained, but new phase containing higher amount of Si forms at the grain boundary. As the amount of Si increases, the fraction the Si-rich grain boundary phase increases.

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참고문헌

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피인용 문헌

  1. Effect of carbon addition on the microstructure and mechanical properties of CoCrFeNi high entropy alloy pp.1869-1900, 2017, https://doi.org/10.1007/s11431-017-9134-6