Modeling of element diffusion behavior in bimetallic compound layer

IF 7.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Mechanical Sciences Pub Date : 2025-02-27 DOI:10.1016/j.ijmecsci.2025.110108

Lianjing Hao , Chaoyang Sun , Huijun Liang , Chunhui Wang , Lingyun Qian , Qingsong Han

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Abstract

Element diffusion bonding process of bimetallic laminated materials directly influences the evolution of the microstructure and indirectly impacts the high-performance applications. In this paper, a variable coefficient element diffusion model is constructed considering the growth of compound layer to elucidate the element diffusion behavior in the compound layers. Subsequently, the compound layer growth kinetic equation is proposed considering thermoplastic deformation parameters and the element diffusion coefficients are calculated at different diffusion distances and diffusion times. It is found that there is a positive correlation between the deformation temperature, strain, holding time and diffusivity. Lower diffusion activation energy, and the increased number of grain boundary and lattice defects improve the diffusivity. The model can accurately predict the element diffusion behavior of bimetallic compound layer under dynamic compression conditions and the prediction error ranging from 4.36% to 6.37%. The sensitivity analysis of the deformation parameters that affect the diffusivity is investigated and this study provides valuable insights for the forming and application of dissimilar metal laminates.

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来源期刊

International Journal of Mechanical Sciences 工程技术-工程：机械

CiteScore

12.80

自引率

17.80%

发文量

769

审稿时长

19 days

期刊介绍： The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering. The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture). Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content. In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.