Microstructure and Particle Size Distribution of Cu-Ni Alloy Powder Preparedby Different Power Ultrasonic Assisted Electrical Discharge Machining

WEI Yazhou; LIU Yifan; LI Xianglong

doi:10.11973/jxgccl202301011

Materials and Mechanical Engineering > 2023 > 47(1): 76-80. > DOI: 10.11973/jxgccl202301011

WEI Yazhou, LIU Yifan, LI Xianglong. Microstructure and Particle Size Distribution of Cu-Ni Alloy Powder Preparedby Different Power Ultrasonic Assisted Electrical Discharge Machining[J]. Materials and Mechanical Engineering, 2023, 47(1): 76-80. DOI: 10.11973/jxgccl202301011

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Microstructure and Particle Size Distribution of Cu-Ni Alloy Powder Preparedby Different Power Ultrasonic Assisted Electrical Discharge Machining

1. School of Mechanical Engineering, Sichuan University, Chengdu 610065, China;
2. Innovation Method and Creative Design Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China;
3. School of Materials and Energy, University of Electronic Science and Technology, Chengdu 611731, China

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Received Date: August 29, 2021
Revised Date: October 13, 2022

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Abstract

Abstract

Cu-Ni alloy powders were synthesized by ultrasonic assisted electrical discharge machining (EDM) method with copper and nickel metals as positive and negative electrodes, respectively. The effects of ultrasonic power (0, 500, 1 000, 1 500 W) on the crystal structure, micromorphology and particle size distribution of the alloy powder were investigated. The results show that the phases of Cu-Ni alloy powders synthesized by ultrasonic assisted EDM under different power conditions were all composed of Cu_0.81Ni_0.19, Ni, CuO, NiO and Fe₂O₃. The main crystal phase Cu_0.81Ni_0.19 had a face-centered cubic structure. With increasing ultrasonic power, the diffraction peak intensity of the Cu_0.81Ni_0.19 increased while the full width at half maximum became narrower, indicating the better crystallinity of the powder. Irregular particles with large size appeared in Cu-Ni alloy powders synthesized by the ultrasonic assisted method, but the size of spherical particles decreased and the distribution range of particle size became wider. With increasing ultrasonic power, the average particle size D₅₀ decreased.
- electrical discharge machining,
- Cu-Ni alloy powder,
- ultrasonic power,
- crystal structure,
- particle size

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References (17)

References

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