소성∙가공 (Transactions of Materials Processing)

  • 제13권4호
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  • Pages.374-381
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  • 2004
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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나노인덴터와 원자력간 현미경을 이용한 결정립 제어 레오로지 소재의 변형거동에 관한 연구

A Study on Deformation Behavior of the Grain-Size Controlled Rheology Material by Using Nanoindenter and AFM

  • 윤성원 (부산대학교 정밀기계공학과) ;
  • 김정원 (부산대학교 정밀기계공학) ;
  • 강충길 (부산대학교 기계공학부)
  • 발행 : 2004.07.01
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초록

In this study, the deformation behavior of semi-solid Al-Si alloy was investigated by nanoindenter as a part of the research on the surface crack behavior in thixoformed automobile component. The microstructure of semi-solid Al-Si alloy consists of primary and eutectic regions. In eutectic regions the crack initiation begins with initial fracture of the eutectic silicon particles and inside other intermetallic phases. Nano-deformation characteristics in the eutectic and primary phase of semi-solid aluminium alloy were investigated through the nano-indentation experiments and the AFM observation. In addition, mechanical properties of each region were investigated and compared with each other.

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참고문헌

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