Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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A Study on the Recrystallization Behavior of Zr-0.8Sn-xFe Ternary Alloys

Zr-0.8Sn-xFe 3원계 합금의 재결정 거동에 관한 연구

  • Lim, Yoon-Soo (Dept. of Metallurgical Engineering, Taejon National University of Technology) ;
  • Choi, Yang-Jin (Dept. of Metallurgical Engineering, Taejon National University of Technology) ;
  • Wey, Myeong-Yong (Dept. of Materials Engineering, Chungbuk University)
  • 임윤수 (대전산업대학교 금속공학과) ;
  • 최양진 (대전산업대학교 금속공학과) ;
  • 위명용 (충북대학교 재료공학과)
  • Received : 2000.05.16
  • Published : 2000.07.30
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Abstract

Effect of tin and iron content on the recrystallization behavior of temary Zr-0.8Sn-x%Nb alloys were studied. The specimens with 0.1, 0.2 and 0.4 wt.% of iron were prepared under various annealing temperatures from $400^{\circ}C$ to $800^{\circ}C$ and times from 30 to 5000 minutes after vacuum arc remelting. The recrystallization behavior was observed using a polarized optical microscope, TEM and micro-vickers hardness tester. The recrystallization temperature of the alloys slightly increased with iron content due to increase of activation energy. The grain growth of the alloys with 0.1 and 0.2 wt.% of iron occured rapidly, however, that of the alloys with 0.4 wt.% iron was gradually retarded due to precipitation. The hardness of the alloy with a high iron slightly increased by the precipitation of beta phase after annealing at $800^{\circ}C$.

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