연구논문집

Korea Institute of Machinery & Materials (한국기계연구원)
권호 표지

The Surface Recrystallization Behavior of Single Crystal CMSX-2

단결정 CMSX-2의 표면재결정 거동

  • 조창용 (한국기계연구원 재료기술연구부 내열재료그룹) ;
  • 나영상 (한국기계연구원 재료기술연구부 내열재료그룹) ;
  • 김학민 (한국기계연구원 재료기술연구부) ;
  • 김우열 (부산공업대학교) ;
  • 배차헌 (부산공업대학교) ;
  • 이상래 (부산대학교)
  • Published : 1993.12.31
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Abstract

The single crystal specimens were solidified by modified Bridgeman method. The surface recrystallized single crystal specimens were prepared by shot peening followed by heat treatment. The surface recrystallization begins at the dendrite cores on the surface. The recrystallized grains grew into the inner side of the specimen. The growth of recrystallized grains was inhibited by the pores and eutectic phases. The primary $\gamma'$ phases were dissolved at the recrystallized grain boundaries during the grain growth. The grain growth of recrystallized grains was similar to the cellular type transformation. No orientation relationships were found bewteen the recrystallized grains and the parent phase.

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