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http://hdl.handle.net/2080/1579
Title: | Plastic Deformation of Textured Zircaloy 2 |
Authors: | Sahoo, S K Hiwarkar, V D Pant, P Samajdar, I ManiKrishna, K V Dey, G K Srivastav, D Tewari, R Banerjee, S |
Keywords: | Zirconium Twinning EBSD PAS DD Simulation |
Issue Date: | 2011 |
Publisher: | Trans Tech Publications, Switzerland |
Citation: | Materials Science Forum Vols. 702-703 (2012) pp 838-841 |
Abstract: | The present study deals with deformation behaviour of textured Zircaloy 2 with two dominant orientations: basal and non-basal. During initial stages (<10%) of deformation twinning predominates slip in Zircaloy 2 of non-basal texture. Extensive electron backscattered diffraction (EBSD) analysis showed that twinning is strongly orientation sensitive. Positron annihilation spectroscopy (PAS) analysis also offered some insight towards effect of twinning/slip on positron lifetime. At higher deformations (>20%), two distinct class of grains were observed – non-deforming/non-fragmenting grains and deforming/fragmenting grains. The so-called non- deforming/non-fragmenting grains remain equiaxed even after 50% of deformation. They also have insignificant in-grain misorientation developments and have more residual stresses. Dislocation dynamics simulation showed that the dislocation interactions/mobility is insignificant in basal orientations at room temperature deformations. |
Description: | Copyright belongs to Trans Tech Publications, Switzerland |
URI: | http://doi.dx.org/10.4028/www.scientific.net/MSF.702-703.838 http://hdl.handle.net/2080/1579 |
Appears in Collections: | Journal Articles |
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Plastic Deformation.pdf | 691.11 kB | Adobe PDF | View/Open |
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