Hot Deformation Behaviors of Cu/Al Laminated Composites

4th Annual International Workshop on Materials Science and Engineering

Liu, Shuaiyang^1 ; Wang, Aiqin^1

School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang

471023, China^1

关键词: Correlation coefficient;    Deformation behavior;    Deformation temperatures;    Effect of strain;    Experimental values;    Hot deformation behaviors;    Temperature range;    Thermomechanical simulator;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012162/pdf
DOI  :  10.1088/1757-899X/381/1/012162

来源: IOP

【 摘 要 】

In order to research the hot deformation behaviors of Cu/Al laminated composites, isothermal hot compression tests were conducted on a Gleeble-1500D thermo-mechanical simulator in the temperature range of 300 ∼ 450°C and strain rate range of 0.01 ∼ 1 s-1. After hot compression, the cooperative deformation behaviors between Cu and Al were discussed. The effects of deformation temperature and strain rate on the deformation behaviors were described using an Arrhenius-type constitutive equation. Furthermore, considering the effect of strain, the constitutive model was modified. The predicated flow stress values obtained from the modified constitutive equation could be well in accord with the experimental values. High correlation coefficient and low average absolute relative error demonstrate the high accuracy of the constitutive model developed in this work.