Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd Alloys
This research focuses on the synergistic effect of the cooling rate and solute neodymium (Nd) content on the microstructure and physical properties of aluminum-neodymium (Al-Nd) alloys. The results indicate that the cooling rate has a significant impact on the grain morphology, size, and morphology...
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| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/15/1/40 |
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| author | Wenjie Wu Shuchen Sun Xiangjie Wang Xinyu Zhang Chengcheng Chen Xin Hong Yaoyu Yan Jing Wei Ganfeng Tu |
| author_facet | Wenjie Wu Shuchen Sun Xiangjie Wang Xinyu Zhang Chengcheng Chen Xin Hong Yaoyu Yan Jing Wei Ganfeng Tu |
| author_sort | Wenjie Wu |
| collection | DOAJ |
| description | This research focuses on the synergistic effect of the cooling rate and solute neodymium (Nd) content on the microstructure and physical properties of aluminum-neodymium (Al-Nd) alloys. The results indicate that the cooling rate has a significant impact on the grain morphology, size, and morphology of eutectic Al₁₁Nd₃ in the alloy. As the cooling rate decreases, the grains transform from columnar crystals to equiaxed crystals, exhibiting different distribution characteristics in various regions, and the eutectic transforms from skeletal to lamellar and then to acicular. The Nd content affects the eutectic growth and solubility, reaching the maximum solubility at 11 wt.% Nd. Due to the longer diffusion time of Nd atoms in the slow-cooling region and the formation of compounds, the lattice constant in the slow-cooling region is larger. In terms of physical properties, the hardness and electrical conductivity of the alloy are inversely related. The hardness increases with an increases of the cooling rate and Nd content, which is attributed to grain refinement and solid solution strengthening, while the electrical conductivity decreases. These findings are of important theoretical and practical significance for optimizing the performance and application of Al-Nd alloys. |
| format | Article |
| id | doaj-art-9137200bd37b4bd08365723ab8368dba |
| institution | Kabale University |
| issn | 2073-4352 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj-art-9137200bd37b4bd08365723ab8368dba2025-01-24T13:28:06ZengMDPI AGCrystals2073-43522024-12-011514010.3390/cryst15010040Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd AlloysWenjie Wu0Shuchen Sun1Xiangjie Wang2Xinyu Zhang3Chengcheng Chen4Xin Hong5Yaoyu Yan6Jing Wei7Ganfeng Tu8School of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaKey Laboratory 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, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaThis research focuses on the synergistic effect of the cooling rate and solute neodymium (Nd) content on the microstructure and physical properties of aluminum-neodymium (Al-Nd) alloys. The results indicate that the cooling rate has a significant impact on the grain morphology, size, and morphology of eutectic Al₁₁Nd₃ in the alloy. As the cooling rate decreases, the grains transform from columnar crystals to equiaxed crystals, exhibiting different distribution characteristics in various regions, and the eutectic transforms from skeletal to lamellar and then to acicular. The Nd content affects the eutectic growth and solubility, reaching the maximum solubility at 11 wt.% Nd. Due to the longer diffusion time of Nd atoms in the slow-cooling region and the formation of compounds, the lattice constant in the slow-cooling region is larger. In terms of physical properties, the hardness and electrical conductivity of the alloy are inversely related. The hardness increases with an increases of the cooling rate and Nd content, which is attributed to grain refinement and solid solution strengthening, while the electrical conductivity decreases. These findings are of important theoretical and practical significance for optimizing the performance and application of Al-Nd alloys.https://www.mdpi.com/2073-4352/15/1/40A1-Nd alloymicrostructurehardness and conductivityNd contentsynergistic effect |
| spellingShingle | Wenjie Wu Shuchen Sun Xiangjie Wang Xinyu Zhang Chengcheng Chen Xin Hong Yaoyu Yan Jing Wei Ganfeng Tu Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd Alloys Crystals A1-Nd alloy microstructure hardness and conductivity Nd content synergistic effect |
| title | Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd Alloys |
| title_full | Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd Alloys |
| title_fullStr | Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd Alloys |
| title_full_unstemmed | Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd Alloys |
| title_short | Synergistic Effects of Nd Content and Cooling Rate on the Organization and Properties of Al-Nd Alloys |
| title_sort | synergistic effects of nd content and cooling rate on the organization and properties of al nd alloys |
| topic | A1-Nd alloy microstructure hardness and conductivity Nd content synergistic effect |
| url | https://www.mdpi.com/2073-4352/15/1/40 |
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