Ti-6Al-4V 합금의 α상 형상에 따른 미세균열 생성거동 = The Effect of α-Phase Morphology on the Microcrack initiation Behavior of a Ti-6Al-4V Alloy

제어번호 : 3233146

저자명 : 장영원 ,박찬경 ,이종수 ,배기만

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

권호사항 : Vol.31 No.1 [1993]

발행처 : 대한금속재료학회(대한금속학회)

발행처 URL : http://www.kim.or.kr

자료유형 : 학술저널

수록면 : 105-112(8쪽)

언어 : Korean

발행년도 : 1993년

KDC : 436

등재정보 : KCI등재

소장기관 :

  • 고려대학교 중앙도서관
  • 서울대학교 중앙도서관
  • 영남대학교 과학도서관
  • 중앙대학교 서울캠퍼스 중앙도서관

제공처 : 유료 KISS

  • 다국어 초록 (Multilingual Abstract)
    • The purpose of this study is to investigate the deformation characteristics and microcrack initiation behavior depending on the microstructure of Widmanstatten-α(Wα) and equiaxed-α(Eα) in a Ti-6Al-4V Alloy. In Wα structure, microcracks were observed to form along the α/β interfaces, the colony boundaries and the grain boundary α layers both in tension and fracture tests. In Eα structure, most of microvoids were found to form at the α/β interfaces. The lower tensile strength and ductility of Wα structure was mainly due to the strain localization along the prior β grain boundaries and colony boundaries, which was preceded by the easy slip transfer through α/βinterfaces within the colony. The large increase in fracture toughness of Wα structure was, however, primarily attributed to the crack path deviation depending on the colony orientation.
  • 목차
    • 1. 서론
    • 2. 실험방법
    • 3. 결과 및 고찰
    • 인장 및 파괴성질
    • 인장시험시 α상 형상에 따른 소성변형 거동
    • 파괴시험시 균열생성 및 성장거동
    • 4. 결론