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Evolutions in Mechanical Engineering

Deformation Mechanisms in a Niobium-Added Zirconium Alloy via Load Relaxation Tests

  • Open or CloseMurty KL1*, Webber KA2 and Charit I3

    1North Carolina State University, USA

    2Presently at the Nuclear Regulatory Commission, Washington DC, USA

    3University of Idaho, Idaho Falls, USA

    *Corresponding author:Murty KL, North Carolina State University, Raleigh, NC 27695, USA

Submission: June 06, 2022; Published: July 28, 2022

DOI: 10.31031/EME.2022.04.000586

ISSN: 2640-9690
Volume4 Issu3


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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