Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold spray
Cold spray additive manufacturing (CSAM) technology offers a viable way for the preparation of copper matrix composites. However, weak inter-particle bonding constrains mechanical properties of CSAMed deposits. In this work, the effects of conventional annealing and pulsed current on the microstruct...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424004484 |
| _version_ | 1797247829628944384 |
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| author | Chengxin Liu Xingrong Chu Haoran Zhang Jun Gao Liang Chen |
| author_facet | Chengxin Liu Xingrong Chu Haoran Zhang Jun Gao Liang Chen |
| author_sort | Chengxin Liu |
| collection | DOAJ |
| description | Cold spray additive manufacturing (CSAM) technology offers a viable way for the preparation of copper matrix composites. However, weak inter-particle bonding constrains mechanical properties of CSAMed deposits. In this work, the effects of conventional annealing and pulsed current on the microstructure and mechanical properties of CSAMed Cu/Al2O3 deposits were investigated. The results reveal that both annealing treatment and pulsed current treatment could effectively improve the microstructure and mechanical properties of the materials. Following annealing at 500 °C/2 h, the ultimate tensile strength and elongation at break of the materials increased to 145.66 MPa and 2.95%, respectively. While, when the root mean square current densities was 123.2 A/mm2, the ultimate tensile strength and elongation at break enhanced to 142.65 MPa and 5.94%, respectively, after 90 s of treatment. The microstructure evolution and fracture surface analysis demonstrated that the interface between Cu particles was effectively healed following treatment, and the fracture mechanism of the materials was transitioned from brittle to ductile mode. Nevertheless, the interface between Cu and Al2O3 particles were not substantially improved, posing a limitation to further enhancement in mechanical properties of CSAMed Cu/Al2O3 deposits. |
| first_indexed | 2024-03-07T20:05:26Z |
| format | Article |
| id | doaj.art-c50c87b6bedd48e39cdf46fe43d45e76 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:04:55Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c50c87b6bedd48e39cdf46fe43d45e762024-03-24T06:58:31ZengElsevierJournal of Materials Research and Technology2238-78542024-03-012942944305Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold sprayChengxin Liu0Xingrong Chu1Haoran Zhang2Jun Gao3Liang Chen4Associated Engineering Research Center of Mechanics and Mechatronic Equipment, Shandong University, Weihai 264209, PR ChinaAssociated Engineering Research Center of Mechanics and Mechatronic Equipment, Shandong University, Weihai 264209, PR ChinaCollege of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, PR ChinaAssociated Engineering Research Center of Mechanics and Mechatronic Equipment, Shandong University, Weihai 264209, PR China; Corresponding author. Shandong University, PR China.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong 250061, PR ChinaCold spray additive manufacturing (CSAM) technology offers a viable way for the preparation of copper matrix composites. However, weak inter-particle bonding constrains mechanical properties of CSAMed deposits. In this work, the effects of conventional annealing and pulsed current on the microstructure and mechanical properties of CSAMed Cu/Al2O3 deposits were investigated. The results reveal that both annealing treatment and pulsed current treatment could effectively improve the microstructure and mechanical properties of the materials. Following annealing at 500 °C/2 h, the ultimate tensile strength and elongation at break of the materials increased to 145.66 MPa and 2.95%, respectively. While, when the root mean square current densities was 123.2 A/mm2, the ultimate tensile strength and elongation at break enhanced to 142.65 MPa and 5.94%, respectively, after 90 s of treatment. The microstructure evolution and fracture surface analysis demonstrated that the interface between Cu particles was effectively healed following treatment, and the fracture mechanism of the materials was transitioned from brittle to ductile mode. Nevertheless, the interface between Cu and Al2O3 particles were not substantially improved, posing a limitation to further enhancement in mechanical properties of CSAMed Cu/Al2O3 deposits.http://www.sciencedirect.com/science/article/pii/S2238785424004484Cold spray additive manufacturingCu/Al2O3Mechanical propertiesPulsed current treatmentAnnealing heat treatment |
| spellingShingle | Chengxin Liu Xingrong Chu Haoran Zhang Jun Gao Liang Chen Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold spray Journal of Materials Research and Technology Cold spray additive manufacturing Cu/Al2O3 Mechanical properties Pulsed current treatment Annealing heat treatment |
| title | Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold spray |
| title_full | Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold spray |
| title_fullStr | Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold spray |
| title_full_unstemmed | Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold spray |
| title_short | Effects of annealing and pulsed current treatment on the microstructure and mechanical properties of Cu/Al2O3 deposits prepared by cold spray |
| title_sort | effects of annealing and pulsed current treatment on the microstructure and mechanical properties of cu al2o3 deposits prepared by cold spray |
| topic | Cold spray additive manufacturing Cu/Al2O3 Mechanical properties Pulsed current treatment Annealing heat treatment |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424004484 |
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