The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum Environment
Al-2at.% Nd alloy with a gradient cooling rate was prepared using a wedge-shaped mold in a vacuum environment. The relationship between gradient cooling behavior and the microstructure and properties of the Al-2at.% Nd alloy was investigated. The stability of the Al<sub>11</sub>Nd<sub...
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MDPI AG
2025-01-01
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| author | Xiangjie Wang Xinyu Zhang Wenjie Wu Shuchen Sun |
| author_facet | Xiangjie Wang Xinyu Zhang Wenjie Wu Shuchen Sun |
| author_sort | Xiangjie Wang |
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| description | Al-2at.% Nd alloy with a gradient cooling rate was prepared using a wedge-shaped mold in a vacuum environment. The relationship between gradient cooling behavior and the microstructure and properties of the Al-2at.% Nd alloy was investigated. The stability of the Al<sub>11</sub>Nd<sub>3</sub> phase and the mechanical properties were confirmed through first-principles calculations. The results indicated that as the cooling rate decreased, the transformation of grain morphology in Al-2at.% Nd occurred as follows: a mixture of columnar grains and equiaxed grains→equiaxed grains. The grain size of the alloy increased. Discontinuous skeletal eutectic phases, α-Al and Al<sub>11</sub>Nd<sub>3</sub>, formed within the alloy, resulting in a reduction in the number of phase boundaries and grain boundaries. The hardness of the alloy decreased by 25.53%, and this pattern of change closely aligned with the calculated results. |
| format | Article |
| id | doaj-art-21e09d28c5ed45f78543acfd25f64b4e |
| institution | Kabale University |
| issn | 2073-4352 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Crystals |
| spelling | doaj-art-21e09d28c5ed45f78543acfd25f64b4e2025-01-24T13:28:14ZengMDPI AGCrystals2073-43522025-01-011518110.3390/cryst15010081The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum EnvironmentXiangjie Wang0Xinyu Zhang1Wenjie Wu2Shuchen Sun3Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaAl-2at.% Nd alloy with a gradient cooling rate was prepared using a wedge-shaped mold in a vacuum environment. The relationship between gradient cooling behavior and the microstructure and properties of the Al-2at.% Nd alloy was investigated. The stability of the Al<sub>11</sub>Nd<sub>3</sub> phase and the mechanical properties were confirmed through first-principles calculations. The results indicated that as the cooling rate decreased, the transformation of grain morphology in Al-2at.% Nd occurred as follows: a mixture of columnar grains and equiaxed grains→equiaxed grains. The grain size of the alloy increased. Discontinuous skeletal eutectic phases, α-Al and Al<sub>11</sub>Nd<sub>3</sub>, formed within the alloy, resulting in a reduction in the number of phase boundaries and grain boundaries. The hardness of the alloy decreased by 25.53%, and this pattern of change closely aligned with the calculated results.https://www.mdpi.com/2073-4352/15/1/81Al-2at.% Ndwedge-shaped copper mold castingmicrostructurepropertiesfirst principles |
| spellingShingle | Xiangjie Wang Xinyu Zhang Wenjie Wu Shuchen Sun The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum Environment Crystals Al-2at.% Nd wedge-shaped copper mold casting microstructure properties first principles |
| title | The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum Environment |
| title_full | The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum Environment |
| title_fullStr | The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum Environment |
| title_full_unstemmed | The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum Environment |
| title_short | The Effect of Gradient Cooling Behavior on the Microstructure and Mechanical Properties of Al-2at.% Nd Alloy in a Vacuum Environment |
| title_sort | effect of gradient cooling behavior on the microstructure and mechanical properties of al 2at nd alloy in a vacuum environment |
| topic | Al-2at.% Nd wedge-shaped copper mold casting microstructure properties first principles |
| url | https://www.mdpi.com/2073-4352/15/1/81 |
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