Research output: Contribution to journal › Article › peer-review
Effect of severe plastic deformation on structure refinement and mechanical properties of the Al-Zn-Mg-Fe-Ni alloy. / Brodova, Irina; Rasposienko, Dmitriy; Shirinkina, Irina; Petrova, Anastasia; Akopyan, Torgom; Bobruk, Elena.
In: Metals, Vol. 11, No. 2, 296, 09.02.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effect of severe plastic deformation on structure refinement and mechanical properties of the Al-Zn-Mg-Fe-Ni alloy
AU - Brodova, Irina
AU - Rasposienko, Dmitriy
AU - Shirinkina, Irina
AU - Petrova, Anastasia
AU - Akopyan, Torgom
AU - Bobruk, Elena
N1 - Brodova, I.; Rasposienko, D.; Shirinkina, I.; Petrova, A.; Akopyan, T.; Bobruk, E. Effect of Severe Plastic Deformation on Structure Refinement and Mechanical Properties of the Al-Zn-Mg-Fe-Ni Alloy. Metals 2021, 11, 296. https://doi.org/10.3390/met11020296
PY - 2021/2/9
Y1 - 2021/2/9
N2 - This paper identifies the mechanisms of phase and structural transformations during severe plastic deformation by shearing under pressure (high-pressure torsion) of an Al-Zn-Mg-Fe-Ni-based aluminum alloy depending on different initial states of the material (an ingot after homogenizing annealing and a rod produced by radial-shear rolling). Scanning and transmission electron microscopy are used to determine the morphological and size characteristics of the structural constituents of the alloy after high-pressure torsion. It has been found that, irrespective of the history under high-pressure torsion, fragmentation and dynamic recrystallization results in a nanostructural alloy with a high microhardness of 2000 to 2600 MPa. Combined deformation processing (high-pressure torsion + radial-shear rolling) is shown to yield a nanocomposite reinforced with dispersed intermetallic phases of different origins, namely Al9 FeNi eutectic aluminides and MgZn2, Al2 Mg3 Zn3, and Al3 Zr secondary phases. The results of uniaxial tensile testing demonstrate good mechanical properties of the composite (ultimate tensile strength of 640 MPa, tensile yield strength of 628 MPa, and elongation of 5%).
AB - This paper identifies the mechanisms of phase and structural transformations during severe plastic deformation by shearing under pressure (high-pressure torsion) of an Al-Zn-Mg-Fe-Ni-based aluminum alloy depending on different initial states of the material (an ingot after homogenizing annealing and a rod produced by radial-shear rolling). Scanning and transmission electron microscopy are used to determine the morphological and size characteristics of the structural constituents of the alloy after high-pressure torsion. It has been found that, irrespective of the history under high-pressure torsion, fragmentation and dynamic recrystallization results in a nanostructural alloy with a high microhardness of 2000 to 2600 MPa. Combined deformation processing (high-pressure torsion + radial-shear rolling) is shown to yield a nanocomposite reinforced with dispersed intermetallic phases of different origins, namely Al9 FeNi eutectic aluminides and MgZn2, Al2 Mg3 Zn3, and Al3 Zr secondary phases. The results of uniaxial tensile testing demonstrate good mechanical properties of the composite (ultimate tensile strength of 640 MPa, tensile yield strength of 628 MPa, and elongation of 5%).
KW - Al-Zn-Mg alloy
KW - Al Mg Zn
KW - Al Zr
KW - Dynamic recrystallization
KW - Fragmentation
KW - Hardening
KW - High pressure torsion
KW - MgZn
KW - Nanocomposite
KW - Nanomaterials
KW - Tensile test
KW - Transmission electron microscopy
KW - Al3 Zr
KW - MgZn2
KW - Al2 Mg3 Zn3
UR - http://www.scopus.com/inward/record.url?scp=85100569257&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/c170deb6-c993-3b8d-be5f-98f7d5d1687e/
U2 - 10.3390/met11020296
DO - 10.3390/met11020296
M3 - Article
AN - SCOPUS:85100569257
VL - 11
JO - Metals
JF - Metals
SN - 2075-4701
IS - 2
M1 - 296
ER -
ID: 85586044