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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 521 - 528 (8page)
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초록· 키워드
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The surface modification of engineering materials by laser beam scanning (LBS) allows the improvement of propertiesin terms of reduced wear, increased corrosion resistance, and better strength. In this study, the laser beam scan methodwas applied to produce an oxide dispersion strengthened (ODS) structure on a zirconium metal surface. A recrystallizedZircaloy-4 alloy sheet with a thickness of 2 mm, and Y2O3 particles of 10 μm were selected for ODS treatment using LBS.
Through the LBS method, the Y2O3 particles were dispersed in the Zircaloy-4 sheet surface at a thickness of 0.4 mm, whichwas about 20% when compared to the initial sheet thickness. The mean size of the dispersive particles was 20 nm, and theyield strength of the ODS treated plate at 500oC was increased more than 65 % when compared to the initial state. Thisstrength increase was caused by dispersive Y2O3 particles in the matrix and the martensite transformation of Zircaloy-4matrix by the LBS.
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참고문헌 (19)
참고문헌 신청
/ / ASTM E8 ? 82; Standard methods of tension testing of metallic materials
A. Ibrahim / 2009 / / Surface & Coatings Technology 203 : 3579 ~ 3589
B. Cheng / 2013 / DEVELOPMENT OF Mo-ALLOY FOR LWR FUEL CLADDING TO ENHANCE FUEL TOLERANCE TO SEVERE ACCIDENTS / TopFuel 2013 : 852 ~
C. Cayron / 2004 / / J. Nucl. Mater 335 : 83 ~ 102
C. Kim / 2011 / / Procedia Eng 10 : 2226 ~
A. Ibrahim / 2009 / / Surface & Coatings Technology 203 : 3579 ~ 3589
B. Cheng / 2013 / DEVELOPMENT OF Mo-ALLOY FOR LWR FUEL CLADDING TO ENHANCE FUEL TOLERANCE TO SEVERE ACCIDENTS / TopFuel 2013 : 852 ~
C. Cayron / 2004 / / J. Nucl. Mater 335 : 83 ~ 102
C. Kim / 2011 / / Procedia Eng 10 : 2226 ~
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