Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various Temperatures
The current investigation involved casting the Mg–2.2Gd–2.2Zn–0.2Ca (wt%) alloy (GZX220) through permanent mold casting, followed by homogenization at 400 °C for 24 h and extrusion at 250 °C, 300 °C, 350 °C, and 400 °C. Microstructure investigations revealed that α-Mg, Mg–Gd, and Mg–Gd–Zn intermetal...
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MDPI AG
2023-04-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/8/3075 |
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| author | Hüseyin Zengin Soner Ari Muhammet Emre Turan Achim Walter Hassel |
| author_facet | Hüseyin Zengin Soner Ari Muhammet Emre Turan Achim Walter Hassel |
| author_sort | Hüseyin Zengin |
| collection | DOAJ |
| description | The current investigation involved casting the Mg–2.2Gd–2.2Zn–0.2Ca (wt%) alloy (GZX220) through permanent mold casting, followed by homogenization at 400 °C for 24 h and extrusion at 250 °C, 300 °C, 350 °C, and 400 °C. Microstructure investigations revealed that α-Mg, Mg–Gd, and Mg–Gd–Zn intermetallic phases were present in the as-cast alloy. Following the homogenization treatment, a majority of these intermetallic particles underwent partial dissolution into the matrix phase. α-Mg grains exhibited a considerable refinement by extrusion due to dynamic recrystallization (DRX). At low extrusion temperatures, higher basal texture intensities were observed. The mechanical properties were remarkably enhanced after the extrusion process. However, a consistent decline in strength was observed with the rise in extrusion temperature. The corrosion performance of the as-cast GZX220 alloy was reduced by homogenization because of the lack of corrosion barrier effect of secondary phases. A significant enhancement of corrosion resistance was achieved by the extrusion process. |
| first_indexed | 2024-03-11T04:47:25Z |
| format | Article |
| id | doaj.art-3a4864420840429880675d7f8dbc6f38 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T04:47:25Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3a4864420840429880675d7f8dbc6f382023-11-17T20:12:44ZengMDPI AGMaterials1996-19442023-04-01168307510.3390/ma16083075Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various TemperaturesHüseyin Zengin0Soner Ari1Muhammet Emre Turan2Achim Walter Hassel3Institute of Chemical Technology of Inorganic Materials (TIM), Johannes Kepler University Linz, 4040 Linz, AustriaValfsel Armatür Sanayi A.S., 45030 Manisa, TürkiyeIron & Steel Institute, Karabuk University, 78100 Karabük, TürkiyeInstitute of Chemical Technology of Inorganic Materials (TIM), Johannes Kepler University Linz, 4040 Linz, AustriaThe current investigation involved casting the Mg–2.2Gd–2.2Zn–0.2Ca (wt%) alloy (GZX220) through permanent mold casting, followed by homogenization at 400 °C for 24 h and extrusion at 250 °C, 300 °C, 350 °C, and 400 °C. Microstructure investigations revealed that α-Mg, Mg–Gd, and Mg–Gd–Zn intermetallic phases were present in the as-cast alloy. Following the homogenization treatment, a majority of these intermetallic particles underwent partial dissolution into the matrix phase. α-Mg grains exhibited a considerable refinement by extrusion due to dynamic recrystallization (DRX). At low extrusion temperatures, higher basal texture intensities were observed. The mechanical properties were remarkably enhanced after the extrusion process. However, a consistent decline in strength was observed with the rise in extrusion temperature. The corrosion performance of the as-cast GZX220 alloy was reduced by homogenization because of the lack of corrosion barrier effect of secondary phases. A significant enhancement of corrosion resistance was achieved by the extrusion process.https://www.mdpi.com/1996-1944/16/8/3075magnesiumhomogenizationextrusiondynamic recrystallizationtensile propertiescorrosion |
| spellingShingle | Hüseyin Zengin Soner Ari Muhammet Emre Turan Achim Walter Hassel Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various Temperatures Materials magnesium homogenization extrusion dynamic recrystallization tensile properties corrosion |
| title | Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various Temperatures |
| title_full | Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various Temperatures |
| title_fullStr | Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various Temperatures |
| title_full_unstemmed | Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various Temperatures |
| title_short | Evolution of Microstructure, Mechanical Properties, and Corrosion Resistance of Mg–2.2Gd–2.2Zn–0.2Ca (wt%) Alloy by Extrusion at Various Temperatures |
| title_sort | evolution of microstructure mechanical properties and corrosion resistance of mg 2 2gd 2 2zn 0 2ca wt alloy by extrusion at various temperatures |
| topic | magnesium homogenization extrusion dynamic recrystallization tensile properties corrosion |
| url | https://www.mdpi.com/1996-1944/16/8/3075 |
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