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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 202 - 206 (5page)
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초록· 키워드
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Nanocrystalline β1-Cu3Al and β2-NiAl intermetallic compounds were in-situ reinforced in the aluminum matrix with the atomic composition of Al67Cu20Ni13 by the mechanical alloying of elemental powders. Both β1-Cu3Al, β2-NiAl phases that can be only co-synthesized in Cu base alloys have been obtained after 15h milling in this study. The phase evolution during milling process was investigated by X-ray diffraction. The β1-Cu3Al, β2-NiAl phases were metastable with further milling time up to 40 h. Specially, unreacted Al matrix has been totally transformed to amorphous state in the final powder. A remarkable crystalline size of 6.5 nm was reached after 15 h milling time. Thermal stability of the milled powder was also studied by differential thermal analysis. It is shown that β1-Cu3Al, β2-NiAl phases were stable up to higher than 550 °C. Moreover, the inter-diffusion between Al matrix and Cu3Al within the temperature range of 620-740 °C led to the formation of superstructure ζ1-Al3Cu4 phase.
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참고문헌 (26)
참고문헌 신청
R. Dasgupta / 2012 / ISRN Metallurgy 2012:14
M. K. Surappa / 2003 / Sadhana 28:319
방정일 / 2016 / The Effect of the Addition of Ti Metal Fiber and Al-Mg Alloy Binder on the Mechanical Properties of Al-Si/SiCp Metal Matrix Composites Fabricated by Powder Metallurgy / 대한금속·재료학회지 54(6):400~408
M. Krasnowski / 2010 / Intermetallics 18:47
R. Darolia / 1994 / J. Mater. Sci. Technol 10:157
M. K. Surappa / 2003 / Sadhana 28:319
방정일 / 2016 / The Effect of the Addition of Ti Metal Fiber and Al-Mg Alloy Binder on the Mechanical Properties of Al-Si/SiCp Metal Matrix Composites Fabricated by Powder Metallurgy / 대한금속·재료학회지 54(6):400~408
M. Krasnowski / 2010 / Intermetallics 18:47
R. Darolia / 1994 / J. Mater. Sci. Technol 10:157
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