Ultralow-temperature superplasticity and its novel mechanism in ultrafine-grained Al alloys

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Ultralow-temperature superplasticity and its novel mechanism in ultrafine-grained Al alloys. / Chinh, Nguyen Q.; Murashkin, Maxim Yu. ; Bobruk, Elena V. ; Lábár, János L.; Gubicza, Jenő.

в: Materials Research Letters, Том 9, № 11, 09.2021, стр. 475-482.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Author

Chinh, Nguyen Q. ; Murashkin, Maxim Yu. ; Bobruk, Elena V. ; Lábár, János L. ; Gubicza, Jenő. / Ultralow-temperature superplasticity and its novel mechanism in ultrafine-grained Al alloys. в: Materials Research Letters. 2021 ; Том 9, № 11. стр. 475-482.

BibTeX

@article{bf25fb7dedb04003bc8b0a625f822449,

title = "Ultralow-temperature superplasticity and its novel mechanism in ultrafine-grained Al alloys",

abstract = "The important benefits of ultrafine-grained (UFG) alloys for various applications stem from their enhanced superplastic properties. However, decreasing the temperature of superplasticity and providing superplastic forming at lower temperatures and higher strain rates is still a priority. Here, we disclose, for the first time, the mechanism by which grain boundary sliding and rotation are enhanced, when UFG materials have grain boundary segregation of specific alloying elements. Such an approach enables achieving superplasticity in commercial Al alloys at ultralow homologous temperatures below 0.5 (i.e. below 200°C), which is important for developing new efficient technologies for manufacturing complex-shaped metallic parts with enhanced service properties.For the first time, ultralow-temperature superplasticity is found in commercial 7xxx Al alloy. This discovery enables the development of new technologies for the superplastic forming of complex-shaped products with enhanced service properties.",

keywords = "Ultralow-temperature superplasticity, aluminum alloys, ultrafine-grained materials, severe plastic deformation, high-pressure torsion",

author = "Chinh, {Nguyen Q.} and Murashkin, {Maxim Yu.} and Bobruk, {Elena V.} and L{\'a}b{\'a}r, {J{\'a}nos L.} and Jen{\H o} Gubicza",

note = "Ultralow-temperature superplasticity and its novel mechanism in ultrafine-grained Al alloys / Nguyen Q. Chinh a, Maxim Yu Murashkin b,c, Elena V. Bobruk b,c, J{\'a}nos L. L{\'a}b{\'a}r a, Jen{\H o} Gubicza a, Zsolt Kov{\'a}cs a, Anwar Q. Ahmed a, Verena Maier-Kiener d and Ruslan Z. Valiev b,c // Mater. Res. Lett. 2021, VOL. 9, NO. 11, 475–482",

year = "2021",

month = sep,

language = "English",

volume = "9",

pages = "475--482",

journal = "Materials Research Letters",

issn = "2166-3831",

publisher = "Taylor & Francis",

number = "11",

}

RIS

TY - JOUR

T1 - Ultralow-temperature superplasticity and its novel mechanism in ultrafine-grained Al alloys

AU - Chinh, Nguyen Q.

AU - Murashkin, Maxim Yu.

AU - Bobruk, Elena V.

AU - Lábár, János L.

AU - Gubicza, Jenő

N1 - Ultralow-temperature superplasticity and its novel mechanism in ultrafine-grained Al alloys / Nguyen Q. Chinh a, Maxim Yu Murashkin b,c, Elena V. Bobruk b,c, János L. Lábár a, Jenő Gubicza a, Zsolt Kovács a, Anwar Q. Ahmed a, Verena Maier-Kiener d and Ruslan Z. Valiev b,c // Mater. Res. Lett. 2021, VOL. 9, NO. 11, 475–482

PY - 2021/9

Y1 - 2021/9

N2 - The important benefits of ultrafine-grained (UFG) alloys for various applications stem from their enhanced superplastic properties. However, decreasing the temperature of superplasticity and providing superplastic forming at lower temperatures and higher strain rates is still a priority. Here, we disclose, for the first time, the mechanism by which grain boundary sliding and rotation are enhanced, when UFG materials have grain boundary segregation of specific alloying elements. Such an approach enables achieving superplasticity in commercial Al alloys at ultralow homologous temperatures below 0.5 (i.e. below 200°C), which is important for developing new efficient technologies for manufacturing complex-shaped metallic parts with enhanced service properties.For the first time, ultralow-temperature superplasticity is found in commercial 7xxx Al alloy. This discovery enables the development of new technologies for the superplastic forming of complex-shaped products with enhanced service properties.

AB - The important benefits of ultrafine-grained (UFG) alloys for various applications stem from their enhanced superplastic properties. However, decreasing the temperature of superplasticity and providing superplastic forming at lower temperatures and higher strain rates is still a priority. Here, we disclose, for the first time, the mechanism by which grain boundary sliding and rotation are enhanced, when UFG materials have grain boundary segregation of specific alloying elements. Such an approach enables achieving superplasticity in commercial Al alloys at ultralow homologous temperatures below 0.5 (i.e. below 200°C), which is important for developing new efficient technologies for manufacturing complex-shaped metallic parts with enhanced service properties.For the first time, ultralow-temperature superplasticity is found in commercial 7xxx Al alloy. This discovery enables the development of new technologies for the superplastic forming of complex-shaped products with enhanced service properties.

KW - Ultralow-temperature superplasticity

KW - aluminum alloys

KW - ultrafine-grained materials

KW - severe plastic deformation

KW - high-pressure torsion

UR - https://www.tandfonline.com/doi/full/10.1080/21663831.2021.1976293

M3 - Article

VL - 9

SP - 475

EP - 482

JO - Materials Research Letters

JF - Materials Research Letters

SN - 2166-3831

IS - 11

ER -

ID: 85586142