Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatments

A detailed and systematic investigation on the effect post heat treatment has on the microstructure evolution and the resultant mechanical properties of the wire arc additive manufacturing processed Mg-5.9Gd-2.8Y-0.7Zr alloy is conducted in this work. The microstructure of the as-built sample is com...

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Main Authors: Dong Ma, Chunjie Xu, Shang Sui, Jun Tian, Can Guo, Xiangquan Wu, Zhongming Zhang, Sergei Remennik, Dan Shechtman
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Virtual and Physical Prototyping
Subjects:
Online Access:http://dx.doi.org/10.1080/17452759.2023.2225492
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author Dong Ma
Chunjie Xu
Shang Sui
Jun Tian
Can Guo
Xiangquan Wu
Zhongming Zhang
Sergei Remennik
Dan Shechtman
author_facet Dong Ma
Chunjie Xu
Shang Sui
Jun Tian
Can Guo
Xiangquan Wu
Zhongming Zhang
Sergei Remennik
Dan Shechtman
author_sort Dong Ma
collection DOAJ
description A detailed and systematic investigation on the effect post heat treatment has on the microstructure evolution and the resultant mechanical properties of the wire arc additive manufacturing processed Mg-5.9Gd-2.8Y-0.7Zr alloy is conducted in this work. The microstructure of the as-built sample is composed mainly of fine equiaxed α-Mg grain and Mg24(Gd, Y)5 phase. The solution heat treatment (400°C × 1 h) has relatively little effect on grain size, but it can effectively reduce the content of the Mg24(Gd, Y)5 phase, which leads to a significantly improved elongation with slightly decreased strength. Further ageing heat treatment at 200°C induces prismatic βʹ precipitates formation and does not influence other phases and grain size. The samples directly following the peak ageing heat treatment process demonstrate the best tensile properties with yield strength of 227 ± 9 MPa, ultimate tensile strength of 350 ± 4 MPa and elongation of 5.5 ± 0.6%.
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spelling doaj.art-bb5be87689c54fe1ad06e9768fd927762023-09-21T14:38:04ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672023-12-0118110.1080/17452759.2023.22254922225492Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatmentsDong Ma0Chunjie Xu1Shang Sui2Jun Tian3Can Guo4Xiangquan Wu5Zhongming Zhang6Sergei Remennik7Dan Shechtman8Xi’an University of TechnologyXi’an University of TechnologyXi’an University of TechnologyXi’an Shechtman Nobel Prize New Materials InstituteXi’an University of TechnologyXi’an University of TechnologyXi’an University of TechnologyXi’an Shechtman Nobel Prize New Materials InstituteXi’an University of TechnologyA detailed and systematic investigation on the effect post heat treatment has on the microstructure evolution and the resultant mechanical properties of the wire arc additive manufacturing processed Mg-5.9Gd-2.8Y-0.7Zr alloy is conducted in this work. The microstructure of the as-built sample is composed mainly of fine equiaxed α-Mg grain and Mg24(Gd, Y)5 phase. The solution heat treatment (400°C × 1 h) has relatively little effect on grain size, but it can effectively reduce the content of the Mg24(Gd, Y)5 phase, which leads to a significantly improved elongation with slightly decreased strength. Further ageing heat treatment at 200°C induces prismatic βʹ precipitates formation and does not influence other phases and grain size. The samples directly following the peak ageing heat treatment process demonstrate the best tensile properties with yield strength of 227 ± 9 MPa, ultimate tensile strength of 350 ± 4 MPa and elongation of 5.5 ± 0.6%.http://dx.doi.org/10.1080/17452759.2023.2225492wire arc additive manufacturingmg-gd-y-zr alloyheat treatmentmicrostructure evolutionmechanical properties
spellingShingle Dong Ma
Chunjie Xu
Shang Sui
Jun Tian
Can Guo
Xiangquan Wu
Zhongming Zhang
Sergei Remennik
Dan Shechtman
Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatments
Virtual and Physical Prototyping
wire arc additive manufacturing
mg-gd-y-zr alloy
heat treatment
microstructure evolution
mechanical properties
title Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatments
title_full Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatments
title_fullStr Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatments
title_full_unstemmed Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatments
title_short Microstructure evolution and mechanical properties of wire arc additively manufactured Mg-Gd-Y-Zr alloy by post heat treatments
title_sort microstructure evolution and mechanical properties of wire arc additively manufactured mg gd y zr alloy by post heat treatments
topic wire arc additive manufacturing
mg-gd-y-zr alloy
heat treatment
microstructure evolution
mechanical properties
url http://dx.doi.org/10.1080/17452759.2023.2225492
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