bibo:abstract
  • The aim of this research was to confirm the existence of the thermal creep degradation by hydrides of Zr-2.5Nb pressure tube materials. Small punch creep tests were performed to obtain the relationship between a creep displacement and a loading period at 300℃. A creep stress and a creep strain rate were also converted from the previous results. The creep material constants and the creep stress exponents at the different hydride contents were compared. Finally the hydrides of the axial and circumferential section were observed using OM, SEM and TEM. The following conclusions were made: 1) The degradation of the thermal creep by hydrides was existed and it strongly depended on the hydride contents. 2) As the hydride contents were increased, the creep stress exponents(m) were also increased. 3) Even though the hydride was not precipitated in 50ppm materials at 300℃, the degradation of thermal creep was found. Therefore, it was believed that this phenomenon strongly related to the hydride precipitation at room temperature. (rdf:langString) (en)
nlon:biographicalNote
  • 김영석, 회원, 한국원자력연구소 (xsd:string)
  • 마영화, 회원, 중앙대학교 기계공학부 (xsd:string)
  • 오동준, 회원, 안동대학교 기계교육과, djoh (rdf:langString) (andong.ac.kr)
  • 윤기봉, 회원, 중앙대학교 기계공학부 (xsd:string)
nlon:classificationNumberOfNLK
  • 550.5 (xsd:string)
nlon:containedIn
dc:creator
  • 김영석 (xsd:string)
  • 마영화 (xsd:string)
  • 오동준 (xsd:string)
  • 윤기봉 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • Degradation of thermal creep by hydrides of Zr-2/5Nb pressure tube (xsd:string)
bibframe:extent
  • 26 cm (xsd:string)
  • p. 1526-1533 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 2006 (xsd:string)
nlon:itemNumberOfNLK
  • 대446 (xsd:string)
rdfs:label
  • Zr-2.5Nb 압력관의 수소화물에 의한 고온 크리프의 열화거동 / 오동준, 마영화,윤기봉,김영석 (xsd:string)
dcterms:language
dc:subject
  • Degradation (xsd:string)
  • Hydride (xsd:string)
  • Hydrogen embrittlement (xsd:string)
  • Pressure tube (xsd:string)
  • Small punch creep test (xsd:string)
  • Thermal creep (xsd:string)
  • 고온 크리프 (xsd:string)
  • 소형펀치 크리프 시험 (xsd:string)
  • 수소취화 (xsd:string)
  • 수소화물 (xsd:string)
  • 압력관 (xsd:string)
  • 열화 (xsd:string)
dcterms:title
  • Zr-2.5Nb 압력관의 수소화물에 의한 고온 크리프의 열화거동 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 30(12) (xsd:string)