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층상조직 Ti-6Al-4V 합금의 고온 변형 거동에 대한 연구 = High-Temperature Deformation Behavior of Ti-6Al-4V Alloy with a Transformed Microstructure

제어번호 : 45030227

저자명 : 김정한 ,이종수

학술지명 : 대한금속·재료학회지(Korean Journal of Metals and Materials)

권호사항 : Vol.42 No.12 [2004]

발행처 : 대한금속재료학회

발행처 URL : http://www.kim.or.kr

자료유형 : 학술저널

수록면 : 983-991(9쪽)

언어 : Korean

발행년도 : 2004년

KDC : 436

주제어 : Ti-6Al-4V ,Transformed microstructure ,Inelastic deformation ,Grain matrix deformation ,Grain boundary sliding

소장기관 :

  • 영남대학교 과학도서관

제공처 : 한국학술정보 한국학술정보

  • 초록
    • The high temperature deformation mechanisms of Ti-6A1-4V with a transformed microstructure were investigated in the context of inelastic-deformation theory. For this purpose, load-relaxation tests were conducted on samples with a lamellar structure containing different alpha-platelet thicknesses at temperatures of 715℃ - 900℃. The flow stress-versus-strain rate curves for all the microstructures were well fit with an inelastic-deformation equation describing grain-matrix deformation (dislocation glide+dislocation climb). However, for heavily pre-deformed specimens, grain-boundary sliding (CBS) as well as grain-matrix deformation was observed to occur. The GBS rate was found to be most rapid for the microstructure with the thinnest alpha laths/platelets.
      (Received May 31, 2004)
  • 목차
    • Abstract
    • 1. 서론
    • 2. 비탄성 변형이론
    • 3. 실험방법
    • 4. 실험결과
    • 5. 고찰
    • 6. 결론
    • 후기
    • REFERENCES