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논문 : 기계적 성질 ; 보론 첨가 고강도강의 수소지연파괴 저항성에 미치는 입계 페라이트의 영향 = Research Papers : Mechanical Behavior ; Effect of Intergranular Ferrite on the Hydrogen Delayed Fracture Resistance of High Strength Boron-added Steel

제어번호 : 75324671

저자명 : 김지수 ( Ji Soo Kim ) ,이유환 ( You Hwan Lee ) ,이덕락 ( Duk Lak Lee ) ,이종수 ( Chong Soo Lee )

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

권호사항 : Vol.45 No.9 [2007]

발행처 : 대한금속재료학회 ( 구 대한금속학회 )

발행처 URL : http://www.kim.or.kr

자료유형 : 학술저널

수록면 : 506-513(8쪽)

언어 : -

발행년도 : 2007년

KDC : 436

주제어 : high strength boron-added steel ,hydrogen delayed fracture resistance ,intergranular ferrite ,constant Loading test ,thermal desorption analysis

소장기관 :

  • 영남대학교 과학도서관

판매처 : 한국학술정보 한국학술정보 에서 제공하는 논문입니다.

  • 초록
    • In this study, the effect of intergranular ferrite volume fraction on the hydrogen delayed fracture (HDF) resistance of high strength boron-added steel was investigated. For this purpose, constant loading test using cathodically charged specimens was conducted on the three intergranular ferrite volume fractions, i.e., 000, 6% and l0%. With the increase of the amount of intergranular ferrite volume fractions, the HDF resistance in boron-added steel was increased. TEM and SEM observations revealed that the intergranular ferrite took the carbides nucleation sites at grain boundaries, and as a result, the crack nucleation sites were reduced. And the result of thermal desorption analysis showed that the grain boundaries were the main trapping sites.