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Effect of Ultrasonic Melt Processing Time on Microstructures and Hardness of Al-Cu-Mg-Ag-Fe-Ni Alloys
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Shangrui XU, Song BAI, Zhiyi LIU
Mining and Metallurgical Engineering | 2025, 45(5) : 176 - 180
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Mining and Metallurgical Engineering | 2025, 45(5): 176-180
• MATERIALS •
Effect of Ultrasonic Melt Processing Time on Microstructures and Hardness of Al-Cu-Mg-Ag-Fe-Ni Alloys
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Shangrui XU, Song BAI, Zhiyi LIU
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  • School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
Published: 2025-10-01 doi: 10.3969/j.issn.0253-6099.2025.05.031
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The effect of ultrasonic melt processing time on the microstructures and hardness of as-cast and homogenized Al-Cu-Mg-Ag-Fe-Ni alloys was studied. The results show that ultrasonic melt processing leads to more uniform distribution of Fe/Ni-rich phases. Two-minute ultrasonic processing can result in grain refinement of the alloy. However, ultrasonic processing, if extended to 6 minutes, will result in grain coarsening. It is found that ultrasonic processing promotes the dissolution of Al2Cu phase and enhances the solid-solution strengthening effect, resulting in improvement in hardness of the as-cast alloy. After homogenization, Fe/Ni-rich phase is detected as the residual secondary phase in the structure, which exhibits discontinuous distribution along the grain boundaries after ultrasonic processing.

Al-Cu-Mg-Ag alloy  /  ultrasonic processing  /  hardness  /  microstructure  /  precipitation hardening  /  grain refinement
Shangrui XU, Song BAI, Zhiyi LIU. Effect of Ultrasonic Melt Processing Time on Microstructures and Hardness of Al-Cu-Mg-Ag-Fe-Ni Alloys[J]. Mining and Metallurgical Engineering, 2025 , 45 (5) : 176 -180 . DOI: 10.3969/j.issn.0253-6099.2025.05.031
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Year 2025 volume 45 Issue 5
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.05.031
  • Receive Date：2025-04-20
  • Online Date：2026-03-18
  • Published：2025-10-01
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  • Received：2025-04-20
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    School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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