Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Interfacial and Tensile Properties of TiNi Shape Memory Alloy reinforced 6061 Al Smart Composites by vacuum casting

진공주조법에 의한 TiNi 형상기억합금 강화 6061Al 지적 복합재료의 계면 및 인장 특성

  • 박광훈 (동아대학교 재료금속·화학공학부) ;
  • 박성기 (동아대학교 재료금속·화학공학부) ;
  • 신순기 (동아대학교 재료금속·화학공학부) ;
  • 박영철 (동아대학교 기계산업시스템공학부) ;
  • 이규창 (포항 산업과학 연구원) ;
  • 이준희 (동아대학교 재료금속·화학공학부)
  • Published : 2001.12.01
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Abstract

We investigated the change of mechanical properties for TiNi shape memory alloy by heat treatment. 6061Al matrix composites with TiNi shape memory alloy as reinforcement were fabricated by vacuum casting. TiNi alloy has the maximum tensile strength at 673K treated and there is no change of tensile strength and hardness at 448K treated. The composites, prepared by vacuum casting, showed good interface bonding by vacuum casting. It was about 3$\mu\textrm{m}$ of thickness of the diffusion layer. Tensile strength of the composite was in higher than that of 6061Al alloy as increased value of about 70MPa at room temperature and about 110MPa at 363K. We thought that the increase of the tensile strength at 363K was due to reverse transformation of the TiNi shape memory alloy.

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References

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