期刊
MATERIALS LETTERS
卷 314, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.matlet.2022.131894
关键词
Metals and alloys; Diffusion; Ultrasonic; Metallic composites; Microstructure
资金
- Natural Science of Shandong province [ZR2021ME023]
- Innovation Team Project of Jinan [2019GXRC035]
In the liquid-solid composite process, ultrasonic vibration can break the oxide film on the solid alloy surface, promoting the contact and wetting between liquid and solid alloys, leading to metallurgical bonding.
In the liquid-solid composite process to fabricate bimetallic AlSi9Cu3/6061 alloy, oxide film on the solid 6061 alloy could hinder the metallurgical bonding and form cracks on the interface between AlSi9Cu3 and 6061 alloys. The present studies indicate that, in the liquid-solid composite process, ultrasonic vibration applied on the solid 6061 alloy could break the oxide film through ultrasonic cavitation, consequently promote the contact and wetting between liquid AlSi9Cu3 and solid 6061, resulting in a metallurgical bonding. The metallurgical bonding is characterized by a 160 mu m transition layer, in which Cu and Mg distributed with opposite composition gradient.
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