Behavior of Dynamic Strain Aging in Zr-1.5Nb-0.4Sn-0.2Fe-0.1Cr Alloy Strip

The behavior of dynamic strain aging (DSA) in a Zr-1.5Nb-0.4Sn-0.2Fe-0.1Cr alloy strip was investigated at temperature ranges 25–600 °C via tensile test. test performed two different rates 8.33 × 10<sup>-5</sup> and 1.67 10<sup>-2</sup> s<sup>-1</sup>. shear stress the revealed linear dependency on when specimens were tested under higher rate (1.67 s<sup>-1</sup>). However, relationship broken due to DSA samples deformed lower (8.33 discrepancy most significant 400 °C. trend similar irrespective orientation samples, i.e., rolling direction (RD) or transverse (TD). effect larger TD than RD samples. phenomena interpreted variation work hardening exponents sensitivity. value exponent decreased from 0.14 0.08 along 0.1 0.07 TD, respectively. smallest observed 400–500 specimen orientation, which is consistent with behavior. It suggested that caused by an interaction moving dislocations solute atoms typically oxygen.