- Accumulative Roll-Bonding of Al Powder Compact Fabricated by a Powder-in Sheath Rolling Method
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Seong-Hee Lee
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J Korean Powder Metall Inst. 2005;12(1):30-35.
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DOI: https://doi.org/10.4150/KPMI.2005.12.1.030
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 Abstract
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- An aluminum powder compact consolidated by a powder-in sheath rolling (PSR) method was severely deformed by accumulative roll-bonding (ARB) process. The ARB process was performed up to 8 cycles at ambient temperature without lubrication. Optical microscope and transmission electron microscope observations revealed that microstructure of the ARB-processed Al powder compact is inhomogeneous in the thickness direction. The ultra-fine subgrains often reported in the ARB-processed bulky materials were also developed near surface of the Al powder compacts in this study. Tensile strength of the ARB-processed Al powder compact increased at the 1st cycle, but from the 2nd cycle it rather decreased slightly.
- Mechanical Alloying Effect in Immiscible Cu-Based Alloy Systems.
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Chung-Hyo Lee, Seong-Hee Lee, Ji-Soon Kim, Young-Soon Kwon
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J Korean Powder Metall Inst. 2003;10(3):164-167.
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DOI: https://doi.org/10.4150/KPMI.2003.10.3.164
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- The mechanical alloying effect has been studied on the three Cu-based alloy systems with a positive heat of mixing. The extended bcc solid solution has been formed in the Cu-V system and an amorphous phase in the Cu-Ta system. However, it is round that a mixture of nanocrystalline Cu and Mo Is formed in the Cu-Mo system. The neutron diffraction has been employed at a main tool to characterize the detailed amorphization process. The formation of an amorphous phase in Cu-Ta system can be understood by assuming that the smaller Cu atoms preferentially enter into the bcc Ta lattice during ball milling.
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Citations
Citations to this article as recorded by  - Microstructure and Mechanical Properties of 3vol%CNT Reinforced Cu Matrix Composite Fabricated by a Powder in Sheath Rolling Method
Seong-Hee Lee
Korean Journal of Materials Research.2020; 30(3): 149. CrossRef - Synthesis of Ultra Fine Titanium-Tungsten Carbide Powder from Titanium Dioxide and Ammonium Metatungstate
Gil-Geun Lee, Gook-Hyun Ha
MATERIALS TRANSACTIONS.2009; 50(1): 187. CrossRef - Synthesis of WC Nanosized Powder by the Plasma Arc Discharge Process
Seoung Soo Lee, Dong Won Joo, Yeon Gil Jung, Chul Jin Choi
Key Engineering Materials.2007; 336-338: 2086. CrossRef - Characterization of Ni Nanopowders Produced by Electrical Explosion of Wire Technique
Hwan Tae Kim, Won Sik Seo, Dae Hwan Kwon, Pyuck Pa Choi, Ji Soon Kim, Young Soon Kwon
Materials Science Forum.2006; 510-511: 710. CrossRef
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