Scholarlink

<p>Based on the analysis of the interfacial bonding state of industrially hot-rolled 1060 Al/AZ31 Mg laminated composites, isothermal hot-compression experiments were designed to simulate the rolling bonding process of Al/Mg and to investigate the interfacial bonding criteria for dissimilar metals. A thermo–mechanical coupled finite element method was employed to analyze the upsetting hot deformation behavior of Al/Mg composites under different processing parameters. By integrating the experimental results with numerical simulations, a novel interfacial bonding criterion for Al/Mg composites based on the coupled response of stress and strain was proposed. The results indicate that increasing temperature and deformation promotes interfacial bonding and improves overall deformation uniformity. Complete interfacial bonding was achieved at 250&#xa0;°C/60%, 300&#xa0;°C/50%, 350&#xa0;°C/50%, and 400&#xa0;°C/30%. At 400&#xa0;°C, oxide phases Al₂O₃ and MgO formed at the interface. The strain dispersion coefficients reached 0.485 and 0.457 at 350&#xa0;°C/70% and 400&#xa0;°C/50%, respectively, indicating improved deformation uniformity. Stress–strain state analysis at typical locations during Al/Mg upsetting deformation was conducted, and four characteristic deformation regions were defined. Interfacial bonding criterion coefficients (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\({C}_{\varepsilon }\)</EquationSource> </InlineEquation>,<InlineEquation ID="IEq2"> <EquationSource Format="TEX">\({C}_{\sigma }\)</EquationSource> </InlineEquation>) based on strain and stress fields were established and validated through hot-compression experiments, providing a new approach for studying interfacial bonding criteria in dissimilar layered metals.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Isothermal hot compression deformation behavior and interfacial bonding criteria of Al/Mg dissimilar materials

  • 期刊论文

  • 发表日期：

    2026年7月17日

查看全文
  • Wenjie Ji,
  • Ruibin Mei,
  • Xiong Xiong,
  • Xiaobin Lu,
  • Li Bao

摘要

Based on the analysis of the interfacial bonding state of industrially hot-rolled 1060 Al/AZ31 Mg laminated composites, isothermal hot-compression experiments were designed to simulate the rolling bonding process of Al/Mg and to investigate the interfacial bonding criteria for dissimilar metals. A thermo–mechanical coupled finite element method was employed to analyze the upsetting hot deformation behavior of Al/Mg composites under different processing parameters. By integrating the experimental results with numerical simulations, a novel interfacial bonding criterion for Al/Mg composites based on the coupled response of stress and strain was proposed. The results indicate that increasing temperature and deformation promotes interfacial bonding and improves overall deformation uniformity. Complete interfacial bonding was achieved at 250 °C/60%, 300 °C/50%, 350 °C/50%, and 400 °C/30%. At 400 °C, oxide phases Al₂O₃ and MgO formed at the interface. The strain dispersion coefficients reached 0.485 and 0.457 at 350 °C/70% and 400 °C/50%, respectively, indicating improved deformation uniformity. Stress–strain state analysis at typical locations during Al/Mg upsetting deformation was conducted, and four characteristic deformation regions were defined. Interfacial bonding criterion coefficients ( \({C}_{\varepsilon }\) , \({C}_{\sigma }\) ) based on strain and stress fields were established and validated through hot-compression experiments, providing a new approach for studying interfacial bonding criteria in dissimilar layered metals.