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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 178 - 188 (11page)
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To study the effects of zirconium (Zr) addition on the microstructure, hardness and the tensile properties of oxide dispersion strengthened (ODS) ferriticemartensitic steels, two kinds of 9Cr-ODS ferriticemartensitic steels with nominal compositions (wt.%) of Fe-9Cr- 2W-0.3Y2O3 and Fe-9Cr-2W-0.3Zr-0.3Y2O3 were fabricated by the mechanical alloying (MA) of premixed powders and then consolidated by hot isostatic pressing (HIP) techniques. The experimental results showed that the average grain size decreases with Zr addition. The trigonal d-phase Y4Zr3O12 oxides and body-centered cubic Y2O3 oxides are formed in the 9Cr-Zr-ODS steel and 9Cr non-Zr ODS steel, respectively, and the average size of Y4Zr3O12 particles is much smaller than that of Y2O3. The dispersion morphology of the oxide particles in 9Cr-Zr-ODS steel is significantly improved and the number density is 1.1 × 1023/m3 with Zr addition. The 9Cr-Zr-ODS steel shows much higher tensile ductility, ultimate tensile strength and Vickers hardness at the same time.
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참고문헌 (25)
참고문헌 신청
[학술
A. Yabuuchi / 2012 / Influence of oversized elements (Hf, Zr, Ti and Nb) on the thermal stability of vacancies in type 316L stainless steels / J. Nucl. Mater 430 : 190 ~ 193
C. G. Panait / 2010 / Study of the microstructure of the Grade 91 steel after more than 100,000 h of creep exposure at 600℃ / ISIJ Int 87 : 326 ~ 335
C. Keller / 2010 / Influence of the temperature on the tensile behaviour of a modified 9Cr-1Mo T91 martensitic steel / Mater. Sci. Eng. A 527 : 6758 ~ 6764
D. B. Williams / 1996 / Transmission Electron Microscopy / Plenum Press
A. Yabuuchi / 2012 / Influence of oversized elements (Hf, Zr, Ti and Nb) on the thermal stability of vacancies in type 316L stainless steels / J. Nucl. Mater 430 : 190 ~ 193
C. G. Panait / 2010 / Study of the microstructure of the Grade 91 steel after more than 100,000 h of creep exposure at 600℃ / ISIJ Int 87 : 326 ~ 335
C. Keller / 2010 / Influence of the temperature on the tensile behaviour of a modified 9Cr-1Mo T91 martensitic steel / Mater. Sci. Eng. A 527 : 6758 ~ 6764
D. B. Williams / 1996 / Transmission Electron Microscopy / Plenum Press
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