bibo:abstract
  • Turbine casings used in fossil power plants are typical thick-section components serviced under high-temperature, high-pressure conditions. Hence, there components experiences fatigue damage due to thermal stress during operational transients as well as creep damage during steady operation. Cracks of turbine casing usually propagate by creep and fatigue. In this study, creep-fatigue crack growth tests were carried out using 0.5Cr-0.5Mo-0.25V casing steel taken from a retired turbine casing. The crack growth rate due to creep was characterized by the <TEX>$$C_t$$</TEX> parameter and that due to fatigue was characterized by ΔK according to well-known Paris Law. From the experimental results, metals for creep-fatigue crack growth behavior of 0.5Cr-0.5Mo-0.25V casting steel were investigated based on various material constitutive laws. The proposed relation between crack growth rate and fracture parameters such as (<TEX>$$C_t$$</TEX><TEX>$$)_{avg}$$</TEX>, ΔK can be used in predicting residual life of turbine casings. (rdf:langString) (en)
nlon:biographicalNote
  • 권진오, 대한검사기술㈜ 부설연구소 (xsd:string)
  • 윤기봉, 중앙대학교 기계공학부 (xsd:string)
  • 이해무, 한국표준과학연구원 시설안전계측연구센터 (xsd:string)
nlon:classificationNumberOfNLK
  • 559.705 (xsd:string)
nlon:containedIn
dc:creator
  • 권진오 (xsd:string)
  • 윤기봉 (xsd:string)
  • 이해무 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • Modeling of creep-fatigue crack growth behavior of 0.5Cr-0.5Mo-0.25V casting steel (xsd:string)
bibframe:extent
  • 30 cm (xsd:string)
  • p. 285-291 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 2000 (xsd:string)
nlon:itemNumberOfNLK
  • 대445ㄷ (xsd:string)
rdfs:label
  • 0.5Cr-0.5Mo-0.25V 주조강의 크리이프-피로 균열성장 거동 모델링 / 權珍五, 尹基奉,李海武 (xsd:string)
dcterms:language
dc:subject
  • <TEX>$$C_t$$</TEX> (xsd:string)
  • CrMoV steel (xsd:string)
  • Creep (xsd:string)
  • Fatigue (xsd:string)
  • Life assessment (xsd:string)
  • Turbine' casting (xsd:string)
  • 모델링 (xsd:string)
  • 주조강 (xsd:string)
  • 크리이프-피로 (xsd:string)
dcterms:title
  • 0.5Cr-0.5Mo-0.25V 주조강의 크리이프-피로 균열성장 거동 모델링 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 38(2) (xsd:string)