Constitutive model for high temperature deformation behavior of Ti–Zr–Ni–Be bulk metallic glass in supercooled liquid region

Jun, Hyun Jo; Lee, K.S.; Kato, Hidemi; Kim, Hyoung Seop; Chang, Young Won

doi:10.1016/j.commatsci.2012.04.006

Cited by 8 publications

(1 citation statement)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, the finite element method (FEM) has been extensively applied in the scope of engineering, due to its advantages of lower costs, time-consumed to understand materials formability, and optimal processing parameters [6]. The accuracy of FEM results depends on the veracity of the constitutive model [7].…”

Section: Introductionmentioning

confidence: 99%

Correction of Flow Curves and Constitutive Modelling of a Ti-6Al-4V Alloy

Dong

Zhang

et al. 2018

Metals

View full text Add to dashboard Cite

Abstract:Isothermal uniaxial compressions of a Ti-6Al-4V alloy were carried out in the temperature range of 800-1050 • C and strain rate range of 0.001-1 s −1 . The effects of friction between the specimen and anvils as well as the increase in temperature caused by the high strain rate deformation were considered, and flow curves were corrected as a result. Constitutive models were discussed based on the corrected flow curves. The correlation coefficient and average absolute relative error for the strain compensated Arrhenius-type constitutive model are 0.986 and 9.168%, respectively, while the values for a modified Johnson-Cook constitutive model are 0.924 and 22.673%, respectively. Therefore, the strain compensated Arrhenius-type constitutive model has a better prediction capability than a modified Johnson-Cook constitutive model.

show abstract

Section: Introductionmentioning

confidence: 99%