| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1606613 | Journal of Alloys and Compounds | 2016 | 8 Pages |
•Flow stress behaviors are discussed during thermo-mechanical processing.•Flow stress in (α+β) phase exhibits softening whereas in β phase it remains almost constant.•We made comparative study using different materials model to delineate the safe and unsafe hot deformation parameters.•Prediction of each model is validated using microstructural study and summarized in a table.•DMM is best predictable model and hot deformation of Zr-2.5Nb alloy is safe at strain rate lower than 1 s−1.
Dynamic materials model (DMM), modified dynamic materials model (MDMM) and α-parameter were used to develop processing maps of Zr-2.5Nb alloy. Gleeble-3800® thermo-mechanical simulator was used to obtain flow stress at different temperatures and strain rates in the range of 700–925 °C and 0.01–10 s−1 respectively. Suitability of the three models in predicting the hot deformation behavior of Zr-2.5Nb alloy was evaluated by microstructural studies. DMM was found appropriate to delineate different deformation conditions for this alloy.
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