Effect of Nd on microstructure and mechanical properties of Mg-7Gd-0.5Zr alloy

Wang, Linghao; Jalar, Azman; Dan, Longhong

doi:10.1016/j.jallcom.2022.168278

Cited by 9 publications

(1 citation statement)

References 31 publications

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“…[ 21 ] Wang et al reported that Nd element addition improved both the room and elevated temperature mechanical properties of Mg–7Gd–0.5Zr casting alloy. [ 22 ] Chen et al noted that the Nd atoms dissolved into the equilibrium Mg 5 Gd phase and accelerated phase formation in the cast Mg–3Gd–3Nd–0.6Zr alloy. [ 18 ] Luo et al found that the substitution of Gd with Nd shortened the incubation time of the age‐hardening stage and substantially improved the precipitation strengthening effect, resulting in improved room‐temperature tensile properties of Mg–Gd–Nd–Zr casting alloys.…”

Section: Introductionmentioning

confidence: 99%

Constitutive Modeling of Hot Deformation Behaviors and Processing Maps of Mg–4.83Gd–2.36Nd–0.21Zr Alloy

Wang,

Yang,

Ouyang

et al. 2023

Physica Status Solidi (a)

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Accurately assessing the hot workability and flow behavior is crucial in the preparation of high‐performance wrought Mg–rare earth (RE) alloys. The hot deformation behaviors and workability of Mg–4.83Gd–2.36Nd–0.21Zr alloy are examined via Gleeble 3500 thermosimulation tests across a range of deformation temperatures from 350 °C to 450 °C and strain rates ranging from 0.001 to 1 s−1. The experimental results reveal that the flow stress of the experimental alloy decreases as the temperature increases and the strain rate decreases. The activation energies for deformation (Q) of the experiment alloy are calculated by the hyperbolic constitutive equation and range from 186.78 to 234.97 kJ mol−1. Strain compensation is incorporated in constitutive modeling, resulting in the correlation coefficient (R) of 0.9865 and the average absolute relative error (AARE) of 5.4639%. Further, the processing maps are constructed at different strains based on dynamic material models, from which the feasible processing window of the experimental alloy is determined in the areas of deformation temperatures of 425–450 °C and strain rates of 0.01–0.1 s−1.

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Section: Introductionmentioning

confidence: 99%