Experimental and Theoretical Investigations of High-Temperature Creep of the ENAW 5251 (AMg2) Aluminum Alloy under Step Loading

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Experimental and Theoretical Investigations of High-Temperature Creep of the ENAW 5251 (AMg2) Aluminum Alloy under Step Loading. / Арутюнян, Александр Робертович ; Саитова, Регина Ринатовна.

в: Doklady Physics, Том 68, № 7, 2024, стр. 219-222.

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

BibTeX

@article{eebfdf46de114287929dce9f07ae35e1,

title = "Experimental and Theoretical Investigations of High-Temperature Creep of the ENAW 5251 (AMg2) Aluminum Alloy under Step Loading",

abstract = "Abstract: In conditions of high-temperature creep, the evolution of the damage of metallic materials is observed. To describe this effect, the damage conception of Kachanov–Rabotnov is used. The damage parameter is defined as the relative changes in the material density, which is an integral characteristic of the damage. Taking into account this parameter and the law of conservation of mass, interrelated kinetic equations for creep deformation and the damage parameter are formulated. Analytical solutions of these equations are obtained for the case of two-stage loading. Experimental studies of the uniaxial stress state under conditions of high-temperature creep under two-stage loading of the aluminum alloy ENAW 5251 (AMg2) at a temperature of 250°C were conducted. A good agreement of the obtained theoretical curves with the experimental results is observed.",

keywords = "creep, damage, long-term strength, step loading",

author = "Арутюнян, {Александр Робертович} and Саитова, {Регина Ринатовна}",

year = "2024",

doi = "10.1134/s1028335823070017",

language = "English",

volume = "68",

pages = "219--222",

journal = "Doklady Physics",

issn = "1028-3358",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "7",

}

RIS

TY - JOUR

T1 - Experimental and Theoretical Investigations of High-Temperature Creep of the ENAW 5251 (AMg2) Aluminum Alloy under Step Loading

AU - Арутюнян, Александр Робертович

AU - Саитова, Регина Ринатовна

PY - 2024

Y1 - 2024

N2 - Abstract: In conditions of high-temperature creep, the evolution of the damage of metallic materials is observed. To describe this effect, the damage conception of Kachanov–Rabotnov is used. The damage parameter is defined as the relative changes in the material density, which is an integral characteristic of the damage. Taking into account this parameter and the law of conservation of mass, interrelated kinetic equations for creep deformation and the damage parameter are formulated. Analytical solutions of these equations are obtained for the case of two-stage loading. Experimental studies of the uniaxial stress state under conditions of high-temperature creep under two-stage loading of the aluminum alloy ENAW 5251 (AMg2) at a temperature of 250°C were conducted. A good agreement of the obtained theoretical curves with the experimental results is observed.

AB - Abstract: In conditions of high-temperature creep, the evolution of the damage of metallic materials is observed. To describe this effect, the damage conception of Kachanov–Rabotnov is used. The damage parameter is defined as the relative changes in the material density, which is an integral characteristic of the damage. Taking into account this parameter and the law of conservation of mass, interrelated kinetic equations for creep deformation and the damage parameter are formulated. Analytical solutions of these equations are obtained for the case of two-stage loading. Experimental studies of the uniaxial stress state under conditions of high-temperature creep under two-stage loading of the aluminum alloy ENAW 5251 (AMg2) at a temperature of 250°C were conducted. A good agreement of the obtained theoretical curves with the experimental results is observed.

KW - creep

KW - damage

KW - long-term strength

KW - step loading

UR - https://www.mendeley.com/catalogue/e1eaffe5-720d-34f8-9210-123606be3921/

U2 - 10.1134/s1028335823070017

DO - 10.1134/s1028335823070017

M3 - Article

VL - 68

SP - 219

EP - 222

JO - Doklady Physics

JF - Doklady Physics

SN - 1028-3358

IS - 7

ER -

ID: 117018528