Journal ArticleDOI
Constitutive equations for elevated temperature flow stress of Ti–6Al–4V alloy considering the effect of strain
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In this article, the effects of temperature and strain rate on deformation behaviors were represented by Zener-Holloman parameter in an exponent-type equation, and the influence of strain was incorporated in constitutive analysis by considering the effect of strain on material constants.About:
This article is published in Materials & Design.The article was published on 2011-03-01. It has received 208 citations till now. The article focuses on the topics: Strain rate & Constitutive equation.read more
Citations
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Journal ArticleDOI
Constitutive equations for elevated temperature flow behavior of commercial purity aluminum
TL;DR: In this article, isothermal hot compression tests were conducted at the deformation temperatures varying from 350 to 500 ÂC and strain rates ranging from 0.005 to 0.5 Â s−1.
Journal ArticleDOI
Comparative study of constitutive modeling for Ti–6Al–4V alloy at low strain rates and elevated temperatures
TL;DR: In this paper, the authors used four constitutive models, namely, Johnson-Cook, Fields-Backofen (FB), Khan-Huang-Liang (KHL), and Mechanical Threshold Stress (MTS), to predict the flow behavior of Ti-6Al-4V alloy sheet.
Journal ArticleDOI
Microstructure study and constitutive modeling of Ti–6Al–4V alloy at elevated temperatures
TL;DR: In this paper, the tensile fracture behavior of the Ti-6Al-4V alloy was examined with scanning electron microscope (SEM) over the range of magnifications.
Journal ArticleDOI
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
Hot compressive deformation behavior of 7075 Al alloy under elevated temperature
TL;DR: Based on the measured stress-strain data, a new constitutive model is proposed, considering the coupled effects of strain, strain rate, and forming temperature on the material flow behavior of 7075 Al alloy as mentioned in this paper.
References
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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
Hot working of commercial Ti–6Al–4V with an equiaxed α–β microstructure: materials modeling considerations
TL;DR: In this paper, a processing map has been developed on the basis of flow stress data as a function of temperature, strain rate and strain, which is used for obtaining processing windows and achieving microstructural control during hot working.
Journal ArticleDOI
Constitutive equations to predict high temperature flow stress in a Ti-modified austenitic stainless steel
TL;DR: In this paper, the effects of temperature and strain rate on deformation behaviors were represented by Zener-Holloman parameter in an exponent type equation and the influence of strain was incorporated in the constitutive analysis by considering the effect of strain on material constants.
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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