Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process
The aim of this paper is to develop a set of creep aging constitutive equations for Al–Cu–Mg alloys containing plate- or rod-like precipitates. Average length, aspect ratio and relative volume fraction are introduced to quantitatively analyze precipitates evaluation of such alloy in creep aging proc...
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| Published in: | Проблемы прочности |
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| Date: | 2016 |
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| Format: | Article |
| Language: | English |
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Інститут проблем міцності ім. Г.С. Писаренко НАН України
2016
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/173414 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process / Y.L. Yang, L.H. Zhan, X.L. Xu // Проблемы прочности. — 2016. — № 1. — С. 29-38. — Бібліогр.: 30 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862561022089363456 |
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| author | Yang, Y.L. Zhan, L.H. Xu, X.L. |
| author_facet | Yang, Y.L. Zhan, L.H. Xu, X.L. |
| citation_txt | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process / Y.L. Yang, L.H. Zhan, X.L. Xu // Проблемы прочности. — 2016. — № 1. — С. 29-38. — Бібліогр.: 30 назв. — англ. |
| collection | DSpace DC |
| container_title | Проблемы прочности |
| description | The aim of this paper is to develop a set of creep aging constitutive equations for Al–Cu–Mg alloys containing plate- or rod-like precipitates. Average length, aspect ratio and relative volume fraction are introduced to quantitatively analyze precipitates evaluation of such alloy in creep aging process. The strong interaction between creep deformation and aging treatment is considered by the intermediate state variables of dislocation density and precipitate characteristic dimension. A unified creep aging constitutive equation is derived, in which the correlations between microscopic characteristics and macroperformances of material are linked by the yield strength of the material. Using AA2124 as subject, a series of uniaxial tensile creep tests are carried out at 185°C for 12 h under different stresses. The material constants within constitutive models are determined with the experimental data. A good agreement between experimental and computed values confirms that the established constitutive equations can well characterize the creep behaviors.
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| first_indexed | 2025-11-25T23:10:33Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-173414 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0556-171X |
| language | English |
| last_indexed | 2025-11-25T23:10:33Z |
| publishDate | 2016 |
| publisher | Інститут проблем міцності ім. Г.С. Писаренко НАН України |
| record_format | dspace |
| spelling | Yang, Y.L. Zhan, L.H. Xu, X.L. 2020-12-03T19:56:58Z 2020-12-03T19:56:58Z 2016 Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process / Y.L. Yang, L.H. Zhan, X.L. Xu // Проблемы прочности. — 2016. — № 1. — С. 29-38. — Бібліогр.: 30 назв. — англ. 0556-171X https://nasplib.isofts.kiev.ua/handle/123456789/173414 539.4 The aim of this paper is to develop a set of creep aging constitutive equations for Al–Cu–Mg alloys containing plate- or rod-like precipitates. Average length, aspect ratio and relative volume fraction are introduced to quantitatively analyze precipitates evaluation of such alloy in creep aging process. The strong interaction between creep deformation and aging treatment is considered by the intermediate state variables of dislocation density and precipitate characteristic dimension. A unified creep aging constitutive equation is derived, in which the correlations between microscopic characteristics and macroperformances of material are linked by the yield strength of the material. Using AA2124 as subject, a series of uniaxial tensile creep tests are carried out at 185°C for 12 h under different stresses. The material constants within constitutive models are determined with the experimental data. A good agreement between experimental and computed values confirms that the established constitutive equations can well characterize the creep behaviors. This research was supported by the National Basic Research Program of China (Grant No. 2014CB046602), the Key Program of National Natural Science Foundation of China (Grant No. 51235010), and Ph.D. Programs Foundation of Ministry of Education of China (Grant No. 20120162110003). en Інститут проблем міцності ім. Г.С. Писаренко НАН України Проблемы прочности Научно-технический раздел Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process Определяющее моделирование сплава Al-Cu-Mg в процессе старения при ползучести Article published earlier |
| spellingShingle | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process Yang, Y.L. Zhan, L.H. Xu, X.L. Научно-технический раздел |
| title | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process |
| title_alt | Определяющее моделирование сплава Al-Cu-Mg в процессе старения при ползучести |
| title_full | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process |
| title_fullStr | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process |
| title_full_unstemmed | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process |
| title_short | Constitutive Modeling for Al–Cu–Mg Alloy in Creep Aging Process |
| title_sort | constitutive modeling for al–cu–mg alloy in creep aging process |
| topic | Научно-технический раздел |
| topic_facet | Научно-технический раздел |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/173414 |
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