Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion Method
Dissoluble magnesium alloys for fabrication of fracturing tools have received increasing attention in recent years. However, most of the existing research is focused on the small-sized samples prepared in the laboratory, and there is almost no report on the industrial dissoluble magnesium alloys. In...
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MDPI AG
2022-03-01
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| Online Access: | https://www.mdpi.com/2075-4701/12/4/583 |
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| author | Jian Wang Hongxiang Li Jinhui Wang Yaohong Liu Jishan Zhang |
| author_facet | Jian Wang Hongxiang Li Jinhui Wang Yaohong Liu Jishan Zhang |
| author_sort | Jian Wang |
| collection | DOAJ |
| description | Dissoluble magnesium alloys for fabrication of fracturing tools have received increasing attention in recent years. However, most of the existing research is focused on the small-sized samples prepared in the laboratory, and there is almost no report on the industrial dissoluble magnesium alloys. In this study, large-scale Mg-Al-Zn-Mn-Ca-Ni alloys with a diameter of 110 mm were prepared by a semi-continuous casting and two-step extrusion method, and the corresponding microstructure and mechanical and corrosion properties were also investigated. It was found that after two-step extrusion, the mainly precipitate phases in the Mg-Al-Zn-Mn-Ca-Ni alloy are bulk-like AlMnNi, strip-like Al<sub>3</sub>Ni, and granular-like and lamellar-like Mg<sub>17</sub>Al<sub>12</sub> phases. Due to the combined effects of grain refinement and precipitation strengthening, the Mg-Al-Zn-Mn-Ca-Ni alloy obtained excellent mechanical properties after two-step extrusion, and its ultimate tensile strength, yield strength, and elongation were 314.6 MPa, 191.2 MPa, and 13.1%, respectively. Moreover, the corrosion rate of the alloy in 3 wt.% KCl at 93 °C was as high as 97.61 mg·cm<sup>−2</sup>·h<sup>−1</sup>. This work provides a high-performance, low-cost, and large-scale alloy product for the fabrication of dissoluble fracturing tools. |
| first_indexed | 2024-03-09T04:25:20Z |
| format | Article |
| id | doaj.art-e26e6cac04fe44b1b0ad59533de3583a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T04:25:20Z |
| publishDate | 2022-03-01 |
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| spelling | doaj.art-e26e6cac04fe44b1b0ad59533de3583a2023-12-03T13:42:14ZengMDPI AGMetals2075-47012022-03-0112458310.3390/met12040583Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion MethodJian Wang0Hongxiang Li1Jinhui Wang2Yaohong Liu3Jishan Zhang4State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, ChinaDissoluble magnesium alloys for fabrication of fracturing tools have received increasing attention in recent years. However, most of the existing research is focused on the small-sized samples prepared in the laboratory, and there is almost no report on the industrial dissoluble magnesium alloys. In this study, large-scale Mg-Al-Zn-Mn-Ca-Ni alloys with a diameter of 110 mm were prepared by a semi-continuous casting and two-step extrusion method, and the corresponding microstructure and mechanical and corrosion properties were also investigated. It was found that after two-step extrusion, the mainly precipitate phases in the Mg-Al-Zn-Mn-Ca-Ni alloy are bulk-like AlMnNi, strip-like Al<sub>3</sub>Ni, and granular-like and lamellar-like Mg<sub>17</sub>Al<sub>12</sub> phases. Due to the combined effects of grain refinement and precipitation strengthening, the Mg-Al-Zn-Mn-Ca-Ni alloy obtained excellent mechanical properties after two-step extrusion, and its ultimate tensile strength, yield strength, and elongation were 314.6 MPa, 191.2 MPa, and 13.1%, respectively. Moreover, the corrosion rate of the alloy in 3 wt.% KCl at 93 °C was as high as 97.61 mg·cm<sup>−2</sup>·h<sup>−1</sup>. This work provides a high-performance, low-cost, and large-scale alloy product for the fabrication of dissoluble fracturing tools.https://www.mdpi.com/2075-4701/12/4/583dissoluble magnesium alloystwo-step extrusionmicrostructuremechanical propertiescorrosion behaviors |
| spellingShingle | Jian Wang Hongxiang Li Jinhui Wang Yaohong Liu Jishan Zhang Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion Method Metals dissoluble magnesium alloys two-step extrusion microstructure mechanical properties corrosion behaviors |
| title | Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion Method |
| title_full | Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion Method |
| title_fullStr | Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion Method |
| title_full_unstemmed | Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion Method |
| title_short | Microstructure and Properties of Novel Mg-Al-Zn-Mn-Ca-Ni Dissoluble Alloy Fabricated by Industrial Two-Step Extrusion Method |
| title_sort | microstructure and properties of novel mg al zn mn ca ni dissoluble alloy fabricated by industrial two step extrusion method |
| topic | dissoluble magnesium alloys two-step extrusion microstructure mechanical properties corrosion behaviors |
| url | https://www.mdpi.com/2075-4701/12/4/583 |
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