As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys

Gui Yunwei; Li Quanan; Chen Xiaoya; Li Zhitao

doi:doi:10.11648/j.am.20180702.17

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As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys

Gui Yunwei, Li Quanan, Chen Xiaoya, Li Zhitao

Published in Advances in Materials (Volume 7, Issue 2)

Received: 9 August 2018 Published: 13 August 2018

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Abstract

The microstructures and mechanical properties of the as-cast Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) alloys have been investigated by optical microscope (OM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) analysis, transmission electron microscopy (TEM), X-ray diffraction (XRD) and mechanical tensile test. The results show that all the as-cast alloys are mainly composed of α-Mg, Mg₂₄Y₅ and Mg₄₁Nd₅. After adding Sm, the alloy has a new phase of Mg₄₁Sm₅. Furthermore, grain gets refinement, the second phases gradually increase and the morphology of second phases transforms to continuous network distribution. In addition, the mechanical properties of the as-cast alloys vary with Sm content. With the increase of Sm, the ultimate tensile strength, yield strength and hardness of the alloy increase firstly and then decrease, and the elongation decreases. When the amount of Sm is 3%, the alloy has the best mechanical properties, and the ultimate tensile strength, yield strength, hardness and elongation are 245.9 MPa, 207.6 MPa, HV85.9 and 5.88%, respectively. The Mg-5Y-2Nd-0.5Zr alloy to which Sm is not added has a mixed fracture characteristic of ductile fracture and local cleavage fracture. In comparison, when the Sm is 3%, the tear surface of the fracture surface is fine and uniform, and there is no obvious secondary crack and a large dissociation surface, indicating that the fracture energy absorbs more energy, so it shows a high fracture. Strength and high elongation.

Published in	Advances in Materials (Volume 7, Issue 2)
DOI	10.11648/j.am.20180702.17
Page(s)	58-63
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Mg-Y-Nd Alloy, Sm, Microstructures, Mechanical Properties

References

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APA Style

Gui Yunwei, Li Quanan, Chen Xiaoya, Li Zhitao. (2018). As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys. Advances in Materials, 7(2), 58-63. https://doi.org/10.11648/j.am.20180702.17

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ACS Style

Gui Yunwei; Li Quanan; Chen Xiaoya; Li Zhitao. As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys. Adv. Mater. 2018, 7(2), 58-63. doi: 10.11648/j.am.20180702.17

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AMA Style

Gui Yunwei, Li Quanan, Chen Xiaoya, Li Zhitao. As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys. Adv Mater. 2018;7(2):58-63. doi: 10.11648/j.am.20180702.17

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@article{10.11648/j.am.20180702.17,
  author = {Gui Yunwei and Li Quanan and Chen Xiaoya and Li Zhitao},
  title = {As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys},
  journal = {Advances in Materials},
  volume = {7},
  number = {2},
  pages = {58-63},
  doi = {10.11648/j.am.20180702.17},
  url = {https://doi.org/10.11648/j.am.20180702.17},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20180702.17},
  abstract = {The microstructures and mechanical properties of the as-cast Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) alloys have been investigated by optical microscope (OM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) analysis, transmission electron microscopy (TEM), X-ray diffraction (XRD) and mechanical tensile test. The results show that all the as-cast alloys are mainly composed of α-Mg, Mg24Y5 and Mg41Nd5. After adding Sm, the alloy has a new phase of Mg41Sm5. Furthermore, grain gets refinement, the second phases gradually increase and the morphology of second phases transforms to continuous network distribution. In addition, the mechanical properties of the as-cast alloys vary with Sm content. With the increase of Sm, the ultimate tensile strength, yield strength and hardness of the alloy increase firstly and then decrease, and the elongation decreases. When the amount of Sm is 3%, the alloy has the best mechanical properties, and the ultimate tensile strength, yield strength, hardness and elongation are 245.9 MPa, 207.6 MPa, HV85.9 and 5.88%, respectively. The Mg-5Y-2Nd-0.5Zr alloy to which Sm is not added has a mixed fracture characteristic of ductile fracture and local cleavage fracture. In comparison, when the Sm is 3%, the tear surface of the fracture surface is fine and uniform, and there is no obvious secondary crack and a large dissociation surface, indicating that the fracture energy absorbs more energy, so it shows a high fracture. Strength and high elongation.},
 year = {2018}
}

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TY  - JOUR
T1  - As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys
AU  - Gui Yunwei
AU  - Li Quanan
AU  - Chen Xiaoya
AU  - Li Zhitao
Y1  - 2018/08/13
PY  - 2018
N1  - https://doi.org/10.11648/j.am.20180702.17
DO  - 10.11648/j.am.20180702.17
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 58
EP  - 63
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20180702.17
AB  - The microstructures and mechanical properties of the as-cast Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) alloys have been investigated by optical microscope (OM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) analysis, transmission electron microscopy (TEM), X-ray diffraction (XRD) and mechanical tensile test. The results show that all the as-cast alloys are mainly composed of α-Mg, Mg24Y5 and Mg41Nd5. After adding Sm, the alloy has a new phase of Mg41Sm5. Furthermore, grain gets refinement, the second phases gradually increase and the morphology of second phases transforms to continuous network distribution. In addition, the mechanical properties of the as-cast alloys vary with Sm content. With the increase of Sm, the ultimate tensile strength, yield strength and hardness of the alloy increase firstly and then decrease, and the elongation decreases. When the amount of Sm is 3%, the alloy has the best mechanical properties, and the ultimate tensile strength, yield strength, hardness and elongation are 245.9 MPa, 207.6 MPa, HV85.9 and 5.88%, respectively. The Mg-5Y-2Nd-0.5Zr alloy to which Sm is not added has a mixed fracture characteristic of ductile fracture and local cleavage fracture. In comparison, when the Sm is 3%, the tear surface of the fracture surface is fine and uniform, and there is no obvious secondary crack and a large dissociation surface, indicating that the fracture energy absorbs more energy, so it shows a high fracture. Strength and high elongation.
VL  - 7
IS  - 2
ER  -

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Author Information

Gui Yunwei

School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Li Quanan

School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Chen Xiaoya

School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Li Zhitao

School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China

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APA Style

Gui Yunwei, Li Quanan, Chen Xiaoya, Li Zhitao. (2018). As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys. Advances in Materials, 7(2), 58-63. https://doi.org/10.11648/j.am.20180702.17

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ACS Style

Gui Yunwei; Li Quanan; Chen Xiaoya; Li Zhitao. As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys. Adv. Mater. 2018, 7(2), 58-63. doi: 10.11648/j.am.20180702.17

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AMA Style

Gui Yunwei, Li Quanan, Chen Xiaoya, Li Zhitao. As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys. Adv Mater. 2018;7(2):58-63. doi: 10.11648/j.am.20180702.17

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@article{10.11648/j.am.20180702.17,
  author = {Gui Yunwei and Li Quanan and Chen Xiaoya and Li Zhitao},
  title = {As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys},
  journal = {Advances in Materials},
  volume = {7},
  number = {2},
  pages = {58-63},
  doi = {10.11648/j.am.20180702.17},
  url = {https://doi.org/10.11648/j.am.20180702.17},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20180702.17},
  abstract = {The microstructures and mechanical properties of the as-cast Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) alloys have been investigated by optical microscope (OM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) analysis, transmission electron microscopy (TEM), X-ray diffraction (XRD) and mechanical tensile test. The results show that all the as-cast alloys are mainly composed of α-Mg, Mg24Y5 and Mg41Nd5. After adding Sm, the alloy has a new phase of Mg41Sm5. Furthermore, grain gets refinement, the second phases gradually increase and the morphology of second phases transforms to continuous network distribution. In addition, the mechanical properties of the as-cast alloys vary with Sm content. With the increase of Sm, the ultimate tensile strength, yield strength and hardness of the alloy increase firstly and then decrease, and the elongation decreases. When the amount of Sm is 3%, the alloy has the best mechanical properties, and the ultimate tensile strength, yield strength, hardness and elongation are 245.9 MPa, 207.6 MPa, HV85.9 and 5.88%, respectively. The Mg-5Y-2Nd-0.5Zr alloy to which Sm is not added has a mixed fracture characteristic of ductile fracture and local cleavage fracture. In comparison, when the Sm is 3%, the tear surface of the fracture surface is fine and uniform, and there is no obvious secondary crack and a large dissociation surface, indicating that the fracture energy absorbs more energy, so it shows a high fracture. Strength and high elongation.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - As-cast Microstructures and Mechanical Properties of Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) Magnesium Alloys
AU  - Gui Yunwei
AU  - Li Quanan
AU  - Chen Xiaoya
AU  - Li Zhitao
Y1  - 2018/08/13
PY  - 2018
N1  - https://doi.org/10.11648/j.am.20180702.17
DO  - 10.11648/j.am.20180702.17
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 58
EP  - 63
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20180702.17
AB  - The microstructures and mechanical properties of the as-cast Mg-5Y-2Nd-xSm-0.5Zr (x= 0, 1, 3, 5) alloys have been investigated by optical microscope (OM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) analysis, transmission electron microscopy (TEM), X-ray diffraction (XRD) and mechanical tensile test. The results show that all the as-cast alloys are mainly composed of α-Mg, Mg24Y5 and Mg41Nd5. After adding Sm, the alloy has a new phase of Mg41Sm5. Furthermore, grain gets refinement, the second phases gradually increase and the morphology of second phases transforms to continuous network distribution. In addition, the mechanical properties of the as-cast alloys vary with Sm content. With the increase of Sm, the ultimate tensile strength, yield strength and hardness of the alloy increase firstly and then decrease, and the elongation decreases. When the amount of Sm is 3%, the alloy has the best mechanical properties, and the ultimate tensile strength, yield strength, hardness and elongation are 245.9 MPa, 207.6 MPa, HV85.9 and 5.88%, respectively. The Mg-5Y-2Nd-0.5Zr alloy to which Sm is not added has a mixed fracture characteristic of ductile fracture and local cleavage fracture. In comparison, when the Sm is 3%, the tear surface of the fracture surface is fine and uniform, and there is no obvious secondary crack and a large dissociation surface, indicating that the fracture energy absorbs more energy, so it shows a high fracture. Strength and high elongation.
VL  - 7
IS  - 2
ER  -

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