TY - GEN
T1 - Submicrocristalline structure in copper after different severe plastic deformation schemes
AU - Dobatkin, S. V.
AU - Salishchev, G. A.
AU - Kuznetsov, A. A.
AU - Konkova, Tatyana
PY - 2007
Y1 - 2007
N2 - The structure and properties of oxygen-free copper (99,98%) were studied after different types of severe plastic deformation (SPD): equal-channel angular pressing (ECAP), multiaxial deformation (MD), and accumulative roll bonding (ARB) as a function of the strain at room temperature (to a true strain of 30-40). The SPD facilitates the formation of submicroorystalline structure with a grain size of 200-250 nm and predominantly high angle boundaries (83-94%). ECA pressing leads to the formation of the most uniform submicroorystalline structure.The strength characteristics increase with increasing strain and reach the steady stage at ε ≈ 5. At the steady stage, UTS = 460-480 MPa at ARB, and MD, while UTS at ECAP is somewhat lower, 430-440 MPa. The smallest "steady" values EL = 4 - 5% were obtained in the case of ARB, and the maximum EL = 18% was obtained at MD.
AB - The structure and properties of oxygen-free copper (99,98%) were studied after different types of severe plastic deformation (SPD): equal-channel angular pressing (ECAP), multiaxial deformation (MD), and accumulative roll bonding (ARB) as a function of the strain at room temperature (to a true strain of 30-40). The SPD facilitates the formation of submicroorystalline structure with a grain size of 200-250 nm and predominantly high angle boundaries (83-94%). ECA pressing leads to the formation of the most uniform submicroorystalline structure.The strength characteristics increase with increasing strain and reach the steady stage at ε ≈ 5. At the steady stage, UTS = 460-480 MPa at ARB, and MD, while UTS at ECAP is somewhat lower, 430-440 MPa. The smallest "steady" values EL = 4 - 5% were obtained in the case of ARB, and the maximum EL = 18% was obtained at MD.
KW - accumulative roll bonding
KW - copper
KW - equal-channel angular pressing
KW - multiaxial deformation
KW - severe plastic deformation
KW - submicrocrystalline structure
UR - http://www.scopus.com/inward/record.url?scp=38349179749&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.558-559.189
DO - 10.4028/www.scientific.net/MSF.558-559.189
M3 - Conference contribution book
AN - SCOPUS:38349179749
SN - 087849443X
SN - 9780878494439
VL - 558-559
T3 - Materials Science Forum
SP - 189
EP - 194
BT - Recrystallization and Grain Growth III
A2 - Kang, S.-J.L
A2 - Huh, M.Y.
A2 - Hwang, N.M.
A2 - Homma, H.
A2 - Ushioda, K.
A2 - Ikuhara, Y.
T2 - 3rd International Conference on Recrystallization and Grain Growth
Y2 - 10 June 2007 through 15 June 2007
ER -