TY - JOUR
T1 - Formation of nanocrystalline surface layers in various metallic materials by near surface severe plastic deformation
AU - Sato, Masahide
AU - Tsuji, Nobuhiro
AU - Minamino, Yoritoshi
AU - Koizumi, Yuichiro
N1 - Funding Information:
The present study was financially supported by the 21st century COE program (the Center of Excellence for Advanced Structural and Functional Materials Design in Osaka University) through the Ministry of Education, Sports, Culture, Science and Technology of Japan, and by Industrial Technology Research Grant Program '01 from NEDO of Japan under project ID 01A23025d. The supports are gratefully appreciated by the authors.
PY - 2004/1
Y1 - 2004/1
N2 - The surface of the various kinds of metallic materials sheets were severely deformed by wire-brushing at ambient temperature to achieve nanocrystalline surface layer. The surface layers of the metallic materials developed by the near surface severe plastic deformation (NS-SPD) were characterized by means of TEM. Nearly equiaxed nanocrystals with grain sizes ranging from 30 to 200 nm were observed in the near surface regions of all the severely scratched metallic materials, which are Ti-added ultra-low carbon interstitial free steel, austenitic stainless steel (SUS304), 99.99 wt.%Al, commercial purity aluminum (A1050 and A1100), Al-Mg alloy (A5083), Al-4 wt.%Cu alloy, OFHC-Cu (C1020), Cu-Zn alloy (C2600) and Pb-1.5%Sn alloy. In case of the 1050-H24 aluminum, the depth of the surface nanocrystalline layer was about 15 μm. It was clarified that wire-brushing is an effective way of NS-SPD, and surface nanocrystallization can be easily achieved in most of metallic materials.
AB - The surface of the various kinds of metallic materials sheets were severely deformed by wire-brushing at ambient temperature to achieve nanocrystalline surface layer. The surface layers of the metallic materials developed by the near surface severe plastic deformation (NS-SPD) were characterized by means of TEM. Nearly equiaxed nanocrystals with grain sizes ranging from 30 to 200 nm were observed in the near surface regions of all the severely scratched metallic materials, which are Ti-added ultra-low carbon interstitial free steel, austenitic stainless steel (SUS304), 99.99 wt.%Al, commercial purity aluminum (A1050 and A1100), Al-Mg alloy (A5083), Al-4 wt.%Cu alloy, OFHC-Cu (C1020), Cu-Zn alloy (C2600) and Pb-1.5%Sn alloy. In case of the 1050-H24 aluminum, the depth of the surface nanocrystalline layer was about 15 μm. It was clarified that wire-brushing is an effective way of NS-SPD, and surface nanocrystallization can be easily achieved in most of metallic materials.
KW - Aluminum alloy
KW - Copper alloy
KW - Grain size
KW - Lead alloy
KW - Microstructure
KW - Nanocrystalline materials
KW - Severe plastic deformation
KW - Steel
KW - Surface modification
KW - Ultra-grain refinement
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U2 - 10.1016/j.stam.2003.10.015
DO - 10.1016/j.stam.2003.10.015
M3 - Article
AN - SCOPUS:1642389362
VL - 5
SP - 145
EP - 152
JO - Science and Technology of Advanced Materials
JF - Science and Technology of Advanced Materials
SN - 1468-6996
IS - 1-2
ER -