bibo:abstract
  • The pressure tubes made of cold-worked Zr-2.5Nb alloy are subjected to creep deformation during service period resulting in changes to their geometry such as longitudinal elongation, diameter increase and sagging. To evaluate integrity of them, information on the material creep property of the serviced tubes is essential. As one of the methods with which the creep property is directly measured from the serviced components, small punch(SP) creep testing has been considered as a substitute for the conventional uniaxial creep testing. In this study, applicability of the SP creep testing to Zr-2.5Nb pressure tube alloy was studied particularly by measuring the power law creep constants, A, n. The SP creep test has been successfully applied for other high temperature materials which have isotropic behavior. Since the Zr-2.5Nb alloy has anisotropic property, applicability of the SP creep testing can be limited. Uniaxial creep tests and small punch creep tests were conducted with Zr-2.5Nb pressure tube alloy along with finite element analyses. Creep constants obtained by each test method are compared. It was argued that the SP creep test result gave results reflecting material properties of both directions. But the equations derived in the previous study for isotropic materials need to be modified. Discussions were made for future research directions for application of the SP creep testing to Zr-2.5Nb tube alloy. (rdf:langString) (en)
nlon:biographicalNote
  • 마영화, 원자력연구소 석사후 연수생 (xsd:string)
  • 박태규, GIT 재료공학과 방문연구원 (xsd:string)
  • 윤기봉, 회원, 중앙대학교 기계공학부, kbyoon (rdf:langString) (cau.ac.kr)
  • 정일석, 한전 전력연구원 (xsd:string)
nlon:classificationNumberOfNLK
  • 550.5 (xsd:string)
nlon:containedIn
dc:creator
  • 마영화 (xsd:string)
  • 박태규 (xsd:string)
  • 윤기봉 (xsd:string)
  • 정일석 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • (A)study on applicability of SP creep testing for measurement of creep properties of Zr-2.5Nb alloy (xsd:string)
bibframe:extent
  • 26 cm (xsd:string)
  • p. 94-101 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 2003 (xsd:string)
nlon:itemNumberOfNLK
  • 대446 (xsd:string)
rdfs:label
  • Zr-2.5Nb 합금의 크리프 물성 측정을 위한 SP 크리프 시험의 적용성에 대한 연구 / 박태규, 마영화,정일석,윤기봉 (xsd:string)
dcterms:language
dc:subject
  • Anisotropic meterial (xsd:string)
  • CANDU pressure tube (xsd:string)
  • CANadian deuterium uranium 압력관 (xsd:string)
  • Creep (xsd:string)
  • Finite element analysis (xsd:string)
  • Small punch creep test (xsd:string)
  • Zr-2.5Nb (xsd:string)
  • 소형펀치 크리프 시험 (xsd:string)
  • 유한요소해석 (xsd:string)
  • 이방성 재료 (xsd:string)
  • 크리프 (xsd:string)
dcterms:title
  • Zr-2.5Nb 합금의 크리프 물성 측정을 위한 SP 크리프 시험의 적용성에 대한 연구 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 27(1) (xsd:string)