bibo:abstract
  • Fracture behavior of ex-serviced 1Cr-0.5Mo steel was measured at room(24℃) and elevated(538℃) temperature and compared with that measured with virgin 1Cr-0.5Mo steel. Compact C(T) specimens were machined from the base and welded test materials. In case of the C(T) specimens of the weld, fatigue precrack was introduced along the fusion line so that following crack growth should occurs along the region of heat affected zone. It was observed that the J-R curve of the serviced material was significantly lower than that of the virgin material at room temperature. Brittle fracture was observed in the serviced material. On the other hand, at elevated temperature no noticeable difference was found between the J-R curves of the virgin and the serviced material. The measured J-R curves were also compared with those of the 1.25Cr-0.5Mo steel obtained from the other literatures. Optical microscopy and SEM examination of the serviced material reveal the carbide in/along the grain boundary which shows material degradation due to long-term usage. An example of application of the measured J-R curves is shown. (rdf:langString) (en)
nlon:biographicalNote
  • 박재학, 충북대학교 안전공학과 (xsd:string)
  • 신규인, 충북대학교 안전공학과 (xsd:string)
  • 윤기봉, 중앙대학교 기계공학부 (xsd:string)
  • 이해무, 한국표준과학연구원 방재기술연구센터 (xsd:string)
  • 최현창, 한국중공업 기술연구원 (xsd:string)
nlon:classificationNumberOfNLK
  • 530.9805 (xsd:string)
nlon:containedIn
dc:creator
  • 박재학 (xsd:string)
  • 신규인 (xsd:string)
  • 윤기봉 (xsd:string)
  • 이해무 (xsd:string)
  • 최현창 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • (A)study on elevated temperature fracture behavior of cracks in 1Cr-0.5Mo steel weld (xsd:string)
bibframe:extent
  • 26 cm (xsd:string)
  • p. 45-56 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 1997 (xsd:string)
nlon:itemNumberOfNLK
  • 한526ㅅ (xsd:string)
rdfs:label
  • 1Cr-0.5Mo강 용접부 균열의 고온파괴거동 연구 / 신규인, 윤기봉,최현창,박재학,이해무 (xsd:string)
dcterms:language
dc:subject
  • 1Cr-0.5Mo (xsd:string)
  • 1Cr-0.5Mo steel weld (xsd:string)
  • Cracks (xsd:string)
  • Elevated temperature fracture behavior (xsd:string)
  • 고온파괴거동 (xsd:string)
  • 용접부 균열 (xsd:string)
dcterms:title
  • 1Cr-0.5Mo강 용접부 균열의 고온파괴거동 연구 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 12(1)-12(2) (xsd:string)