PSI - Issue 14

Ritam Chatterjee et al. / Procedia Structural Integrity 14 (2019) 251–258 Author name / Structural Integrity Procedia 00 (2018) 000 – 000

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4. Conclusions The trend of flow stress variation with deformation for CP Ti under DRX shows good agreement with the simulated results obtained by Zhou et. al (2017) and experimental results obtained by Blaz et. al (1983). The probabilistic criteria used to compute number of new grains at each deformation step is novel in approach. A pseudo two phase method has been used while renormalizing grain size in simulation post critical strain. At critical strain, the decrease in average dislocation density coincides with the decrease in flow stress, increase in number of new grains and evolution in grain size of both ‘old’ non -recrystallized and ‘new’ recrystallized grains thus proving the occurrence of dynamic recrystallization.

Acknowledgements

The authors hereby acknowledge the grant provided by Indian Space Research Organization (ISRO) under project code 17ISROC005.

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