Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The Effect of Annealing and Additional Deformation on the Mechanical Properties of Ultrafine-Grained Al–1.5Cu Alloy. / Mavlyutov, A. M.; Orlova, T. S.; Yapparova, E. Kh.
в: Technical Physics Letters, Том 46, № 9, 01.09.2020, стр. 916-920.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - The Effect of Annealing and Additional Deformation on the Mechanical Properties of Ultrafine-Grained Al–1.5Cu Alloy
AU - Mavlyutov, A. M.
AU - Orlova, T. S.
AU - Yapparova, E. Kh
N1 - Funding Information: A. Mavlyutov thanks the Russian Science Foundation (grant no. 19-79-00114) for financial support of this work. Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Abstract: We studied mechanical properties of the ultrafine-grained (UFG) alloy of Al–1.5 Cu (wt %). UFG structure has been formed by processing the alloy by high-pressure torsion (НРТ). The UFG alloy shows high values of microhardness (1690 MPa), yield stress (515 MPa), and ultimate tensile strength (655 MPa), but low ductility (~3%). Short-term annealing at 150°C and the subsequent small HPT deformation of 0.25 turns at RT have led only to a slight decrease in the alloy should be replaced by strength to 450 MPa, which was ~70% of the value before annealing, but provided high plasticity (~22%). This implies a high potential for practical application of the alloy under study. The proposed approach may serve as a universal effective way to achieve a combination of high strength and high plasticity for various UFG materials.
AB - Abstract: We studied mechanical properties of the ultrafine-grained (UFG) alloy of Al–1.5 Cu (wt %). UFG structure has been formed by processing the alloy by high-pressure torsion (НРТ). The UFG alloy shows high values of microhardness (1690 MPa), yield stress (515 MPa), and ultimate tensile strength (655 MPa), but low ductility (~3%). Short-term annealing at 150°C and the subsequent small HPT deformation of 0.25 turns at RT have led only to a slight decrease in the alloy should be replaced by strength to 450 MPa, which was ~70% of the value before annealing, but provided high plasticity (~22%). This implies a high potential for practical application of the alloy under study. The proposed approach may serve as a universal effective way to achieve a combination of high strength and high plasticity for various UFG materials.
KW - aluminum–copper alloys
KW - grain-boundary segregation
KW - plasticity
KW - severe plastic deformation
KW - strength
KW - ultrafine-grained structure
KW - ALUMINUM
KW - MICROSTRUCTURAL EVOLUTION
KW - CU
KW - aluminum-copper alloys
KW - SEGREGATION
UR - http://www.scopus.com/inward/record.url?scp=85092306389&partnerID=8YFLogxK
U2 - 10.1134/S1063785020090266
DO - 10.1134/S1063785020090266
M3 - Article
AN - SCOPUS:85092306389
VL - 46
SP - 916
EP - 920
JO - Technical Physics Letters
JF - Technical Physics Letters
SN - 1063-7850
IS - 9
ER -
ID: 70656754