首页|Improvement of mechanical properties of hot extruded and aged Mg-Zn-Mn-Sn alloy through Dy addition
Improvement of mechanical properties of hot extruded and aged Mg-Zn-Mn-Sn alloy through Dy addition
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NSTL
Elsevier
? 2022 Elsevier Inc.The effects of various Dy addition on the microstructure and mechanical properties of Mg-6Zn-1Mn-3Sn (wt%, ZMT613) alloys were investigated. The results showed significant grain refinement and new MgSnDy phases were detected with Dy addition of the as-cast ZMT613 alloy. A small amount of Dy (≤0.8 wt%) can hinder the proportion of dynamic recrystallized (DRXed) grains during hot-extrusion process and enhance the basal texture of the alloy. The MgSnDy high-temperature phase (HTP) particles inhibited the recovery process and retained substructures during solution treatment, which promoted the precipitation of the second phase. The as-aged ZMT613–0.2Dy alloy showed optimum mechanical properties, where yield strength, ultimate tensile strength, and elongation were 336 MPa, 399 MPa, and 4.4%, respectively.
Dy additionMechanical propertyMg-Zn-Mn-Sn alloyMgSnDyMicrostructures
Xue H.、Liu S.、Xie W.、Zhou Y.、Peng J.、Pan H.、Zhang D.、Pan F.
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College of Materials Science and Engineering Chongqing University
NSTL
Elsevier
