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Low Temperature Superplasticity of High-Strength Ultrafine-Grained Al 7050 alloy. / Bobruk, E. V.; Murashkin, M. Yu; Lomakin, I. V.; Kazykhanov, V. U.; Valiev, R. Z.

In: IOP Conference Series: Materials Science and Engineering, Vol. 461, No. 1, 012090, 10.12.2018.

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Bobruk, E. V. ; Murashkin, M. Yu ; Lomakin, I. V. ; Kazykhanov, V. U. ; Valiev, R. Z. / Low Temperature Superplasticity of High-Strength Ultrafine-Grained Al 7050 alloy. In: IOP Conference Series: Materials Science and Engineering. 2018 ; Vol. 461, No. 1.

BibTeX

@article{072a309e386b490c988498009d3db1e9,
title = "Low Temperature Superplasticity of High-Strength Ultrafine-Grained Al 7050 alloy",
abstract = "Ultrafine-grained (UFG) Al 7050 alloy of the 7xxx series demonstrates very high strength at room temperature with UTS=845 MPa and hardness Hv=255, which considerably exceeds the value after conventional heat treatment T73, i.e. Hv=165. It is also revealed that with increasing temperature the alloy exhibits rather high ductility with elongation to failure δ=170% at 120 °C and strain rate of 5×104 s-1 and typical superplastic behavior with δ=480% and δ=690% at temperatures 170 °C and 200 °C correspondingly. Such values of superplasticity (SP) temperature are considerably lower than that typical of this alloy with micron-sized grains (TSP=450-500 °C). Such reduction in superplasticity temperature made it possible to preserve ultrafine grains in the alloy structure and provide its high-strength state after SP straining.",
author = "Bobruk, {E. V.} and Murashkin, {M. Yu} and Lomakin, {I. V.} and Kazykhanov, {V. U.} and Valiev, {R. Z.}",
note = "Funding Information: The authors gratefully acknowledge the financial support through the Ministry of Science and Higher Education of the Russian Federation under grant agreement No. 14.586.21.0061 (unique project identifier RFMEFI58618X0061). Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.; 5th International Conference Recent Trends in Structural Materials, COMAT 2018 ; Conference date: 14-11-2018 Through 16-11-2018",
year = "2018",
month = dec,
day = "10",
doi = "10.1088/1757-899X/461/1/012090",
language = "English",
volume = "461",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - Low Temperature Superplasticity of High-Strength Ultrafine-Grained Al 7050 alloy

AU - Bobruk, E. V.

AU - Murashkin, M. Yu

AU - Lomakin, I. V.

AU - Kazykhanov, V. U.

AU - Valiev, R. Z.

N1 - Funding Information: The authors gratefully acknowledge the financial support through the Ministry of Science and Higher Education of the Russian Federation under grant agreement No. 14.586.21.0061 (unique project identifier RFMEFI58618X0061). Publisher Copyright: © Published under licence by IOP Publishing Ltd. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2018/12/10

Y1 - 2018/12/10

N2 - Ultrafine-grained (UFG) Al 7050 alloy of the 7xxx series demonstrates very high strength at room temperature with UTS=845 MPa and hardness Hv=255, which considerably exceeds the value after conventional heat treatment T73, i.e. Hv=165. It is also revealed that with increasing temperature the alloy exhibits rather high ductility with elongation to failure δ=170% at 120 °C and strain rate of 5×104 s-1 and typical superplastic behavior with δ=480% and δ=690% at temperatures 170 °C and 200 °C correspondingly. Such values of superplasticity (SP) temperature are considerably lower than that typical of this alloy with micron-sized grains (TSP=450-500 °C). Such reduction in superplasticity temperature made it possible to preserve ultrafine grains in the alloy structure and provide its high-strength state after SP straining.

AB - Ultrafine-grained (UFG) Al 7050 alloy of the 7xxx series demonstrates very high strength at room temperature with UTS=845 MPa and hardness Hv=255, which considerably exceeds the value after conventional heat treatment T73, i.e. Hv=165. It is also revealed that with increasing temperature the alloy exhibits rather high ductility with elongation to failure δ=170% at 120 °C and strain rate of 5×104 s-1 and typical superplastic behavior with δ=480% and δ=690% at temperatures 170 °C and 200 °C correspondingly. Such values of superplasticity (SP) temperature are considerably lower than that typical of this alloy with micron-sized grains (TSP=450-500 °C). Such reduction in superplasticity temperature made it possible to preserve ultrafine grains in the alloy structure and provide its high-strength state after SP straining.

UR - http://www.scopus.com/inward/record.url?scp=85059386358&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/461/1/012090

DO - 10.1088/1757-899X/461/1/012090

M3 - Conference article

AN - SCOPUS:85059386358

VL - 461

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

SN - 1757-8981

IS - 1

M1 - 012090

T2 - 5th International Conference Recent Trends in Structural Materials, COMAT 2018

Y2 - 14 November 2018 through 16 November 2018

ER -

ID: 36552075