Earticle

초록

영어

P92 steel weldment scheduled to use for next generation ultra super critical(USC) boiler header is assessed on creep characteristics. The test method to assess local structure of weldment is small-punch creep(SP-Creep) test, which is a kind of micro test proved the availability on evaluation of mechanical property for local structure. The results for P92 steel weldment are compared with that of tensile creep test for same microstructures of steel weldment. Overall, the creep resistance of coarse grain HAZ(CGHAZ) at 650℃ is inferior to the other structures while fine grain HAZ(FGHAZ) is most superior in the P92 steel weldment. The power law relationships can be obtained for each weldment structures(BM, ICHAZ, FGHAZ, CGHAZ and W.M) of USC boiler header

목차

ABSTRACT
 1. 서론
 2. 시험편과 실험방법
  2.1 P92 강 용접부의 크리프 시험편
  2.2 SP-Creep 시험방법
 3. 실험결과 및 고찰
  3.1 P92 강 용접부의 조직관찰 및 경도분포
  3.2 P92 강 용접부의 SP-Creep 곡선거동
  3.3 P92 강 용접부의 SP-Creep 속도거동
  3.4 P92 강 용접부의 파단수명에 대한 인장 크리프 특성과의 비교
 4. 결론
 References

키워드

저자

• 유효선 [ Hyo-Sun Yu | Member, Mechanical System Engineering, Jonbuk National University, Automotive Technology Research Center ] Corresponding author

참고문헌

발행기관

간행물

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• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620