Deformation Mechanisms in a NiobiumAdded Zirconium Alloy via Load Relaxation Tests_Crimson Publishers

 Deformation Mechanisms in a NiobiumAdded Zirconium Alloy via Load Relaxation Tests by Murty KL*, Webber KA and Charit I in Crimson Publishers



Abstract: 

Load relaxation tests have been performed on a recrystallized Nb-bearing Zr alloy sheet in the rolling direction at various temperatures. The strain rate - stress data thus obtained were used to identify the transitional deformation mechanisms in various modulus-compensated stress regimes. Crystallographic texture of the alloys that controls the extent of mechanical anisotropy was determined. Load relaxation tests are also performed in the direction at 45o to the transverse direction in order to characterize the deformation anisotropy. The degree of anisotropy (in terms of the strain rate ratio) is found to increase with the increase in stress exponent values.

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