Metallurgy, Vol. 60 No. 3-4, 2021.
Original scientific paper
High temperature constitutive model of 6005A aluminum alloy
R. Yao
; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. C. Ji
orcid.org/0000-0002-1592-6362
; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
J. F. Jin
; CRRC TANGSHAN CO., LTD., Hebei Tangshan, China
X. Y. Shao
; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. Y. Long
; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
Abstract
Use Gleeble-3800 thermal simulation test machine to conduct thermal tensile test on 6005A aluminum alloy at 623~723 K and 0,01~1 s-1 strain rate. Using the obtained true stress-strain curve, the modified Zerilli-Armstrong (m- Z-A) model considering strain compensation was used to construct the constitutive model of the alloy. The results show that the correlation coefficient and average absolute error of the m-Z-A model are 0,97311 and 4,1779 %, respectively. The experimental data is in good agreement with the predicted curve obtained by calculating the model, which verifies the feasibility of the model.
Keywords
aluminum alloy 6005A; constitutive model; tensile test; flow stress; Zerilli-Armstrong (Z-A) model
Hrčak ID:
256016
URI
Publication date:
1.7.2021.
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