Ti-Fe-Ni-Al 계 합금의 초소성 특성에 미치는 합금원소의 영향 = Alloying Effects on the Superplastic Behavior

제어번호 : 3234064

저자명 : 이종수 ,김지식

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

권호사항 : Vol.35 No.4 [1997]

발행처 : 대한금속재료학회(대한금속학회)

발행처 URL : http://www.kim.or.kr

자료유형 : 학술저널

수록면 : 450-459(10쪽)

언어 : Korean

발행년도 : 1997년

KDC : 436

등재정보 : KCI등재

소장기관 :

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

제공처 : 유료 KISS

  • 다국어 초록 (Multilingual Abstract)
    • The aim of the present investigation was to develop a new titanium alloy with improved superplastic performance (higher elongation and lower forming temperature) through alloying with Fe, Ni and Al. A total of nine alloy compositions were used in which Fe content was fixed while Ni and A1 contents were varied. The alloy Ti-5Fe-4Al-2Ni was proved to be promising in that it gives a large elongation over 1500% at a low deformation temperature of 650℃, which was made possible mainly due to the existence of Fe and Ni. Alloying with Ni within suitable amount was found to increase the strain rate sensitivity and to decrease the flow stress, while the effect of Al addition was found to be insignificant to the superplastic behavior but its content should be limited. Possible mechanisms and optimum volume fractions for the superplasticity in the present alloy system were also discussed.