Effect of Microstructure on the Damping Capacity of 12Cr Martensitic Heat-resisting Steel

12Cr 마르텐사이트계 내열강의 감쇠능에 미치는 미세조직의 영향

  • Received : 2009.11.02
  • Accepted : 2010.03.31
  • Published : 2010.04.30

Abstract

This study was carried out to investigate the effect of microstructure on the damping capacity of 12Cr martensite heat-resisting steels, in case of the specimen with martensite phase contained the volume faction of ferrite phases, under 5%. The damping capacity was decreased with the increase of solution treatment temperature and time. While it was increased with the increase of tempering temperature and time. The damping capacity was higher in case of specimen with martensite single phase structure than the specimen with martensite phase contained of ferrite phases.

Keywords

References

  1. 吉田豊明, 1995, "ガスタ-ビン機關の超高溫材料技術について", 耐熱金屬材料, 第123會 硏究報告, Vol. 36, No. 3, p. 275.
  2. S. Yoshiatsu et al., 1995, "Development of high strength 12%Cr steel pipe and tube for boilers", sumitomo kinjoku, Vol. 47, No. 4, p. 29.
  3. R. C. Thomson, H. D. Jamson and H. Bhadeshia, 1992, "Carbide precipitartion in 12Cr 1Mo V power plant steel", metallurgical transaction A, Vol. 23A, p. 1171-1179.
  4. 강창룡 외 5인, 2000, "발전플렌트용 10Cr 페라이트 내열강의 라베스상 석출거동 및 기계적 성질", 한국동력기계공학회지, 제6권, 제1호, pp. 1-7.
  5. 강창룡 외 5인, 2009, "원심주조된 내열강의 미세조직 및 기계적성질에 미치는 단조 조건의 영향", 한국동력기계공학회지, 제13권, 제3호, pp. 47-52.
  6. H. Okada et al., 2004, "Effect of epsilon martensite on the damping of high strength Fe-Cr-Mn alloy", Materials science & Engineering, Vol. 307, pp. 519-523.
  7. C. Y. Kang et al., 2009, "Effect of Heat Treatment on the Damping Capacity of Austempered Ductile Cast Iron", Materials transactions, Vol. 50, No. 6, pp. 1390-1395. https://doi.org/10.2320/matertrans.MRA2008427