Journal ArticleDOI
Flow behavior modeling of the 7050 aluminum alloy at elevated temperatures considering the compensation of strain
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TLDR
In this article, a constitutive equation of 7050 aluminum alloy considering the compensation of the strain was proposed, and the correlation coefficient and the average absolute relative error (AARE) were introduced to verify the validity of the constitutive equations.About:
This article is published in Materials & Design.The article was published on 2012-12-01. It has received 92 citations till now. The article focuses on the topics: Strain rate & Flow stress.read more
Citations
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A comparative study on modified Johnson Cook, modified Zerilli–Armstrong and Arrhenius-type constitutive models to predict the hot deformation behavior in 28CrMnMoV steel
TL;DR: In this article, a comparative study has been made on the capability of the three models to represent the elevated temperature flow stress behavior of 28CrMnMoV steel, and the results showed that the predicted values by the modified Johnson Cook and Zerilli-Armstrong models could agree well with the experimental values except under the strain rate of 0.01 s −1.
Journal ArticleDOI
Constitutive equation and processing maps of an Al–Mg–Si aluminum alloy: Determination and application in simulating extrusion process of complex profiles
TL;DR: In this article, a deep understanding of hot deformation behavior of a material plays a crucial role in determining process parameters and designing extrusion dies during the extrusion process of the aluminum alloy profiles.
Journal ArticleDOI
Effect of creep-aging on precipitates of 7075 aluminum alloy
TL;DR: In this article, the effects of creep-aging temperature and applied stress on the precipitates of 7075-T651 aluminum alloy were investigated using a scanning electron microscope (SEM) and a transmission electron microscopy (TEM).
Journal ArticleDOI
Microstructural Evolution and Dynamic Softening Mechanisms of Al-Zn-Mg-Cu Alloy during Hot Compressive Deformation
Cangji Shi,J. Lai,X-Grant Chen +2 more
TL;DR: The hot deformation behavior and microstructural evolution of an Al-Zn-Mg-Cu (7150) alloy was studied during hot compression at various temperatures and strain rates, revealing that the dynamic recovery is the sole softening mechanism at temperatures of 300 to 400 °C with various strain rates.
Journal ArticleDOI
A comparative study on the phenomenological and artificial neural network models to predict hot deformation behavior of AlCuMgPb alloy
TL;DR: In this article, an artificial neural network (ANN) model with a feed forward back propagation learning algorithm was developed for the prediction of the hot deformation behavior of the AlCuMgPb alloy.
References
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Journal ArticleDOI
A critical review of experimental results and constitutive descriptions for metals and alloys in hot working
Yong-Cheng Lin,Xiao-Min Chen +1 more
TL;DR: In this paper, a critical review on some experimental results and constitutive descriptions for metals and alloys in hot working, which were reported in international publications in recent years, is presented.
Journal ArticleDOI
Recent development in aluminium alloys for aerospace applications
TL;DR: In this article, the authors investigated new processing routes and new alloy chemistries for aircraft materials, which offer major improvements in ductility, toughness, fatigue performance and in reduction of residual stress in large dimension plate and sheet products.
Journal ArticleDOI
Constitutive analysis in hot working
H.J. McQueen,N.D. Ryan +1 more
TL;DR: In this paper, the effects of impurities and dispersoids on the constitutive equations for Al alloys are briefly discussed and compared with carbon, micro-alloyed, tool and stainless steels and to ferritic steels which usually do not exhibit DRX.
Journal ArticleDOI
Constitutive modeling for elevated temperature flow behavior of 42CrMo steel
TL;DR: In this paper, the compressive deformation behavior of 42CrMo steel was investigated at the temperatures from 850 to 1150 ǫ c and strain rates from 0.01 to 50 s−1 on Gleeble-1500 thermo-simulation machine.
Journal ArticleDOI
Prediction of steel flow stresses at high temperatures and strain rates
A. Laasraoui,John J. Jonas +1 more
TL;DR: In this paper, the flow behavior of steels during deformation in the roll gap was simulated by means of single hit compression tests performed in the temperature range 800 °C to 1200 °C.
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A critical review of experimental results and constitutive descriptions for metals and alloys in hot working
Yong-Cheng Lin,Xiao-Min Chen +1 more