Heterostructured copper-brass laminates with gradient transition layer
Heterogeneous laminates are developed to address the trade-off between strength and ductility, but interface cracking is a major concern. In this work, a heterostructured copper-brass laminate with 20 layers was successfully prepared by diffusion welding + cold rolling + annealing (DRA) technique. T...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423003952 |
| _version_ | 1797858756825972736 |
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| author | Zhongchen Zhou Jiansheng Li Qingzhong Mao Yu Yue Shuaizhuo Wang Yusheng Li |
| author_facet | Zhongchen Zhou Jiansheng Li Qingzhong Mao Yu Yue Shuaizhuo Wang Yusheng Li |
| author_sort | Zhongchen Zhou |
| collection | DOAJ |
| description | Heterogeneous laminates are developed to address the trade-off between strength and ductility, but interface cracking is a major concern. In this work, a heterostructured copper-brass laminate with 20 layers was successfully prepared by diffusion welding + cold rolling + annealing (DRA) technique. The obtained copper-brass laminate was composed of brass layers with fine grains and copper layers with coarse grains. During diffusion welding, a transition layer was found between copper and brass layers, with composition, grain size and hardness gradient. With the help of the gradient transition layer (GTL), the bonding strength of the welding interface is so high that cannot be torn apart during peeling test. The GTL plays important role in coordinating plastic deformation and relaxing stress concentration. An excellent combination of strength and ductility was realized in the copper-brass laminates, which can be attributed to the unique GTL and high density of heterogeneous interfaces. Moreover, the GTL with hardness gradient can prevent micro-cracks from initiating at interfaces, and avoid macro-crack propagating along the welding interface or coarse/fine grained heterogeneous interface. |
| first_indexed | 2024-04-09T21:18:32Z |
| format | Article |
| id | doaj.art-889c73da20c94622bec9b629da496a1e |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:18:32Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-889c73da20c94622bec9b629da496a1e2023-03-28T06:48:52ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012355345546Heterostructured copper-brass laminates with gradient transition layerZhongchen Zhou0Jiansheng Li1Qingzhong Mao2Yu Yue3Shuaizhuo Wang4Yusheng Li5Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, ChinaSchool of Materials Science and Engineering, Anhui Polytechnic University, Wuhu, 241000, ChinaNano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, ChinaSchool of Science, Shandong Jianzhu University, Jinan, 250101, Shandong, ChinaNano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, ChinaNano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China; Corresponding author.Heterogeneous laminates are developed to address the trade-off between strength and ductility, but interface cracking is a major concern. In this work, a heterostructured copper-brass laminate with 20 layers was successfully prepared by diffusion welding + cold rolling + annealing (DRA) technique. The obtained copper-brass laminate was composed of brass layers with fine grains and copper layers with coarse grains. During diffusion welding, a transition layer was found between copper and brass layers, with composition, grain size and hardness gradient. With the help of the gradient transition layer (GTL), the bonding strength of the welding interface is so high that cannot be torn apart during peeling test. The GTL plays important role in coordinating plastic deformation and relaxing stress concentration. An excellent combination of strength and ductility was realized in the copper-brass laminates, which can be attributed to the unique GTL and high density of heterogeneous interfaces. Moreover, the GTL with hardness gradient can prevent micro-cracks from initiating at interfaces, and avoid macro-crack propagating along the welding interface or coarse/fine grained heterogeneous interface.http://www.sciencedirect.com/science/article/pii/S2238785423003952Diffusion weldingHeterostructured laminatesGradient transition layerHetero-deformation induced hardeningFracture behavior |
| spellingShingle | Zhongchen Zhou Jiansheng Li Qingzhong Mao Yu Yue Shuaizhuo Wang Yusheng Li Heterostructured copper-brass laminates with gradient transition layer Journal of Materials Research and Technology Diffusion welding Heterostructured laminates Gradient transition layer Hetero-deformation induced hardening Fracture behavior |
| title | Heterostructured copper-brass laminates with gradient transition layer |
| title_full | Heterostructured copper-brass laminates with gradient transition layer |
| title_fullStr | Heterostructured copper-brass laminates with gradient transition layer |
| title_full_unstemmed | Heterostructured copper-brass laminates with gradient transition layer |
| title_short | Heterostructured copper-brass laminates with gradient transition layer |
| title_sort | heterostructured copper brass laminates with gradient transition layer |
| topic | Diffusion welding Heterostructured laminates Gradient transition layer Hetero-deformation induced hardening Fracture behavior |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423003952 |
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