Investigation of interdiffusion and intermetallic compounds in Al–Cu joint produced by continuous drive friction welding

Yanni Wei; Jinglong Li; Jiangtao Xiong; Fusheng Zhang

doi:10.1016/j.jestch.2015.05.009

Investigation of interdiffusion and intermetallic compounds in Al–Cu joint produced by continuous drive friction welding

Yanni Wei, Jinglong Li, Jiangtao Xiong, Fusheng Zhang

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

75 引用（Scopus）

摘要

In this paper, the joints between Al and Cu bars were fabricated by continuous drive friction welding. The microstructures and the compositions of the composites were analyzed by SEM, EDS and XRD. The surface temperature was observed using an infrared thermographic camera. The interface temperatures were suggested in the range of 648~723 K at different welding parameters. The interdiffusion between Al and Cu atoms is extraordinarily rapid, as the interdiffusion coefficients could reach 7.8 × 10⁻¹² m²/s. Intermetallic phases Al₂Cu and Al₄Cu₉ were identified in all samples in view of the XRD and EDS analyses. The effective Gibbs free energy change of formation model was proposed to predict the Al–Cu compound formation at solid-state interface, and the calculation combined with kinetic factors showed that Al₂Cu (Al side) and Al₄Cu₉ (Cu side) appeared first.

源语言	英语
页（从-至）	90-95
页数	6
期刊	Engineering Science and Technology, an International Journal
卷	19
期	1
DOI	https://doi.org/10.1016/j.jestch.2015.05.009
出版状态	已出版 - 1 3月 2016

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10.1016/j.jestch.2015.05.009

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title = "Investigation of interdiffusion and intermetallic compounds in Al–Cu joint produced by continuous drive friction welding",

abstract = "In this paper, the joints between Al and Cu bars were fabricated by continuous drive friction welding. The microstructures and the compositions of the composites were analyzed by SEM, EDS and XRD. The surface temperature was observed using an infrared thermographic camera. The interface temperatures were suggested in the range of 648~723 K at different welding parameters. The interdiffusion between Al and Cu atoms is extraordinarily rapid, as the interdiffusion coefficients could reach 7.8 × 10−12 m2/s. Intermetallic phases Al2Cu and Al4Cu9 were identified in all samples in view of the XRD and EDS analyses. The effective Gibbs free energy change of formation model was proposed to predict the Al–Cu compound formation at solid-state interface, and the calculation combined with kinetic factors showed that Al2Cu (Al side) and Al4Cu9 (Cu side) appeared first.",

keywords = "Al–Cu joint, Continuous drive friction welding, Formation Gibbs free energy, Interdiffusion, Intermetallic phase",

author = "Yanni Wei and Jinglong Li and Jiangtao Xiong and Fusheng Zhang",

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AU - Wei, Yanni

AU - Li, Jinglong

AU - Xiong, Jiangtao

AU - Zhang, Fusheng

PY - 2016/3/1

Y1 - 2016/3/1

N2 - In this paper, the joints between Al and Cu bars were fabricated by continuous drive friction welding. The microstructures and the compositions of the composites were analyzed by SEM, EDS and XRD. The surface temperature was observed using an infrared thermographic camera. The interface temperatures were suggested in the range of 648~723 K at different welding parameters. The interdiffusion between Al and Cu atoms is extraordinarily rapid, as the interdiffusion coefficients could reach 7.8 × 10−12 m2/s. Intermetallic phases Al2Cu and Al4Cu9 were identified in all samples in view of the XRD and EDS analyses. The effective Gibbs free energy change of formation model was proposed to predict the Al–Cu compound formation at solid-state interface, and the calculation combined with kinetic factors showed that Al2Cu (Al side) and Al4Cu9 (Cu side) appeared first.

AB - In this paper, the joints between Al and Cu bars were fabricated by continuous drive friction welding. The microstructures and the compositions of the composites were analyzed by SEM, EDS and XRD. The surface temperature was observed using an infrared thermographic camera. The interface temperatures were suggested in the range of 648~723 K at different welding parameters. The interdiffusion between Al and Cu atoms is extraordinarily rapid, as the interdiffusion coefficients could reach 7.8 × 10−12 m2/s. Intermetallic phases Al2Cu and Al4Cu9 were identified in all samples in view of the XRD and EDS analyses. The effective Gibbs free energy change of formation model was proposed to predict the Al–Cu compound formation at solid-state interface, and the calculation combined with kinetic factors showed that Al2Cu (Al side) and Al4Cu9 (Cu side) appeared first.

KW - Al–Cu joint

KW - Continuous drive friction welding

KW - Formation Gibbs free energy

KW - Interdiffusion

KW - Intermetallic phase

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JO - Engineering Science and Technology, an International Journal

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Investigation of interdiffusion and intermetallic compounds in Al–Cu joint produced by continuous drive friction welding

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