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Ti-6Al-4V 합금의 동적변형특성과 탄도충격성능  :  2. 동적비틀림 특성과 탄도충격성능 2. Dynamic Torsional Properties and Ballistic Performance = Dynamic Deformation and Ballistic Properties of Ti-6Al-4V Alloy

제어번호 : 40123998

저자명 : 이동근 ,이유환 ,이성학 ,이종수 ,이충열 ,허선무

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

권호사항 : Vol.41 No.10 [2003]

발행처 : 대한금속재료학회

발행처 URL : http://www.kim.or.kr

자료유형 : 학술저널

수록면 : 652-660(9쪽)

언어 : Korean

발행년도 : 2003년

KDC : 436

주제어 : Ti-6Al-4V alloy ,Ballistic performance ,Dynamic torsional test ,Equiaxed microstructure ,Bimodal microstructure ,Adiabatic shear band

소장기관 :

  • 영남대학교 과학도서관

제공처 : 한국학술정보 한국학술정보

  • 초록
    • The effects of microstructural morphology on dynamic deformation and fracture behavior and ballistic performance of a Ti-6Al-4V alloy were investigated in this study. Ballistic impact tests were conducted on equiaxed and bimodal microstructures, which were processed by different heat treatments, and then the test data were analyzed in relation to microstructures, tensile properties, and dynamic torsional test data. In the impacted region
      of the equiaxed microstructure, a number of adiabatic shear bands and cracks were observed to be formed along plastic flow lines, and delamination occurred because of cracking along the plastic flow lines or shear bands. In the case of the bimodal microstructure, shear bands were found in limited area near the impacted region without occurring delamination, and their number was fewer than that of the equiaxed microstructure. Thus, ballistic performance of the bimodal microstructure was better than that of the equiaxed microstructure. The ballistic performance of the two microstructures was also discussed by comparing the possibility of adiabatic shear band formation obtained from dynamic torsional test data.
  • 목차
    • Abstract
    • 1. 서론
    • 2. 실험 방법
    • 3. 실험 결과
    • 4. 결과 고찰
    • 5. 결론
    • 후기
    • REFERENCES