Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layer
AZ31/7075 composite with the addition of Zn foil (about 100 μm in thickness) in the dissimilar material interface was successfully fabricated by pre-extrusion+caliber rolling composite process. The microstructure evolution especially for the composite interface was characterized by optical microscop...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2022-03-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000140 |
| _version_ | 1797964818259378176 |
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| author | YU Hui REN Junchao YANG Xin GUO Shulong YU Wei FENG Jianhang YIN Fuxing SHIN Kwangseon |
| author_facet | YU Hui REN Junchao YANG Xin GUO Shulong YU Wei FENG Jianhang YIN Fuxing SHIN Kwangseon |
| author_sort | YU Hui |
| collection | DOAJ |
| description | AZ31/7075 composite with the addition of Zn foil (about 100 μm in thickness) in the dissimilar material interface was successfully fabricated by pre-extrusion+caliber rolling composite process. The microstructure evolution especially for the composite interface was characterized by optical microscopy (OM), scanning electron microscopy (SEM) with energy dispersive spectrometer (EDS) and the microhardness test was also performed. The effect of the Zn intermediate layer on the product during the extrusion and caliber rolling was explored. The results show the hard 7075 Al alloy as the core can refine the grain size of AZ31 alloy. In addition, introducing Zn intermediate layer can reduce or completely avoid the formation of Mg-Al intermetallic compounds. The temperature increased by extrusion and deformation results in the remelting of eutectic Mg-Zn phase, and the diffusion of both elements from the solid to the liquid phase are accelerated. However, discontinuous cracks can be observed in the Mg-Zn diffusion layer but will be healed after caliber rolling. The MgZn2 intermetallic compound generated at Mg-Zn diffusion layer has high hardness (161HV), but the overall hardness of bonding layer is not changed a lot due to thinner thickness of the Mg-Zn diffusion layer after deformation. |
| first_indexed | 2024-04-11T01:49:46Z |
| format | Article |
| id | doaj.art-5505bad5bd6a47c6b7ed5103c83c1216 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:49:46Z |
| publishDate | 2022-03-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-5505bad5bd6a47c6b7ed5103c83c12162023-01-03T06:42:45ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812022-03-0150315716510.11868/j.issn.1001-4381.2021.00014020220317Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layerYU Hui0REN Junchao1YANG Xin2GUO Shulong3YU Wei4FENG Jianhang5YIN Fuxing6SHIN Kwangseon7School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 200039, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Materials Science and Engineering, Seoul National University, Seoul 08826, South KoreaAZ31/7075 composite with the addition of Zn foil (about 100 μm in thickness) in the dissimilar material interface was successfully fabricated by pre-extrusion+caliber rolling composite process. The microstructure evolution especially for the composite interface was characterized by optical microscopy (OM), scanning electron microscopy (SEM) with energy dispersive spectrometer (EDS) and the microhardness test was also performed. The effect of the Zn intermediate layer on the product during the extrusion and caliber rolling was explored. The results show the hard 7075 Al alloy as the core can refine the grain size of AZ31 alloy. In addition, introducing Zn intermediate layer can reduce or completely avoid the formation of Mg-Al intermetallic compounds. The temperature increased by extrusion and deformation results in the remelting of eutectic Mg-Zn phase, and the diffusion of both elements from the solid to the liquid phase are accelerated. However, discontinuous cracks can be observed in the Mg-Zn diffusion layer but will be healed after caliber rolling. The MgZn2 intermetallic compound generated at Mg-Zn diffusion layer has high hardness (161HV), but the overall hardness of bonding layer is not changed a lot due to thinner thickness of the Mg-Zn diffusion layer after deformation.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000140mg/al alloyzn intermediate layercompound formingmicrostructuremicrohardness |
| spellingShingle | YU Hui REN Junchao YANG Xin GUO Shulong YU Wei FENG Jianhang YIN Fuxing SHIN Kwangseon Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layer Cailiao gongcheng mg/al alloy zn intermediate layer compound forming microstructure microhardness |
| title | Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layer |
| title_full | Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layer |
| title_fullStr | Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layer |
| title_full_unstemmed | Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layer |
| title_short | Fabrication, microstructure and property of AZ31/7075 composites with Zn intermediate layer |
| title_sort | fabrication microstructure and property of az31 7075 composites with zn intermediate layer |
| topic | mg/al alloy zn intermediate layer compound forming microstructure microhardness |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000140 |
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