한국재료학회지 (Korean Journal of Materials Research)

  • 제12권9호
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  • Pages.701-705
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  • 2002
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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Sc첨가한 Al-Mg 합금의 고온변형 거동에 미치는 결정립 크기의 영향

Effects of Grain Size on High Temperature Deformation Behavior of Sc added Al-Mg Alloy

  • 우기도 (전북대학교 신소재공학부, 공업기술연구센터) ;
  • 김석원 (전북대학교 신소재공학부, 공업기술연구센터) ;
  • 김학신 (전북대학교 신소재공학부, 공업기술연구센터) ;
  • 양창호 (전북대학교 신소재공학부, 공업기술연구센터) ;
  • 박희찬 (전북대학교 신소재공학부, 공업기술연구센터) ;
  • ;
  • 박경태 (한밭대학교 신소재공학부)
  • Woo, K.D. (Division of Advanced Materials Engineering & the RICT, Engineering Research Institute, Chonbuk National University) ;
  • Kim, S.W. (Division of Advanced Materials Engineering & the RICT, Engineering Research Institute, Chonbuk National University) ;
  • Kim, H.S. (Division of Advanced Materials Engineering & the RICT, Engineering Research Institute, Chonbuk National University) ;
  • Yang, C.H. (Division of Advanced Materials Engineering & the RICT, Engineering Research Institute, Chonbuk National University) ;
  • Park, H.C. (Division of Advanced Materials Engineering & the RICT, Engineering Research Institute, Chonbuk National University) ;
  • MIURA, Y. (Department of Materials Science and Engineering Research Institute, Chonbuk National University) ;
  • Park, K.T. (Department of Matallurgical Engineering, Hanbat National University)
  • 발행 : 2002.09.01
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초록

High temperature tensile test has been performed at $450^{\circ}C$ at different strain rate with various grain size due to different reduction rate of Al-4wt%Mg-0.4wt%Sc alloy which is known to be one of useful superplastic alloys. The grain size of Al-4wt%Mg-0.4wt%Sc alloy is $67~100\mu\textrm{m}$ which is courser than that of the alloy which is commonly used as the superplastic material. The total elongation of the Al-4wt%Mg-0.4wt%Sc alloy is strongly dependent on the average grain size, and is a linear function of the inverse average grain size for the present alloy.

키워드

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