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Numerical Simulation for Dynamic Recrystallization of Ti40 Alloy in Hot Compression by Finite Element Method

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Abstract:

Hot compression tests of Ti40 alloy was carried out on a GLEEBLE 3500 thermo- mechanical simulator at the deformation temperatures of 950~1100°C, the strain rates of 0.01~0.1s-1 and the height reductions from 20% to 60%. The true stress/true strain curves were obtained through the tests. Through physical experiment and FEM-based microstructure modelings, the dynamic recrystallizaiton (DRX) behavior of the alloy is extensively explored. The results show that increasing true strain, raising deformation temperature and reducing strain rate are contribute to the DRX of the Ti40 alloy. The simulation results agree well with the experiment results, which prove the accuracy of the microstructure evolution models for predicting the DRX process during hot compression.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

559-564

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.559

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Online since:

December 2012

Authors:

Xin Song, Ke Lu Wang, Xiao Bo Zhang, Shi Qiang Lu

Keywords:

Dynamic Recrystallization (DRX), Finite Element Method (FEM), Hot Compression, Ti40 Alloy

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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