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Investigation of anisotropic creep-ageing behaviour of Al-Cu-Li Alloy AA2050
File(s)
OA Location
Author(s)
Tong, Chenpeng
Li, Yong
Shi, Zhusheng
Type
Conference Paper
Abstract
Creep age forming (CAF) of an Al-Cu-Li alloy (AA2050-T34) considering its anisotropic creep-ageing behaviour has been experimentally and numerically investigated in this study. A series of uniaxial creep-ageing tests of AA2050-T34 has been carried out in both tension and compression conditions. The creep-ageing results in longitudinal and transverse samples show some anisotropic behaviour in both the room temperature yield strength and the creep strain, in which more strengthening occurs at the intermediate stage and less creep strain is produced in the transverse samples than the longitudinal samples under the same loading condition. It is also found that compressive loading results in much higher anisotropic behaviour than tensile loading. A material model has been adopted for the creep-ageing of AA2050 and shows a good fit to experimental data. Based on the model, a four-point bending virtual test has been developed in PAM-STAMP for simulating the CAF process of AA2050. The results indicate that the anisotropic behaviour contributes an apparent effect on both creep-aged properties and springback of the CAF process and need be considered for CAF manufacture of AA2050 components.
Date Issued
2020-09-04
Date Acceptance
2020-07-13
Citation
Procedia Manufacturing, 2020, 50, pp.241-247
URI
DOI
ISSN
2351-9789
Publisher
Elsevier
Start Page
241
End Page
247
Journal / Book Title
Procedia Manufacturing
Volume
50
Copyright Statement
© 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
License URL
Source
18th International Conference on Metal Forming 2020 (Virtual)
Subjects
0910 Manufacturing Engineering
1007 Nanotechnology
Publication Status
Published
Start Date
2020-09-13
Finish Date
2020-09-16
Coverage Spatial
Kraków, Poland
Date Publish Online
2020-09-04