Scholarlink

<p>This study investigates the effect of Accumulative Roll Bonding (ARB) on the corrosion behavior and mechanical properties of 5052 aluminum alloy. ARB processing was applied up to five passes to fabricate multilayered structures, and the samples were tested under various corrosive conditions to evaluate improvements in durability. Electrochemical techniques, including potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), were performed in 3.5% NaCl solution to assess the stability of passive films and corrosion kinetics. Results showed that the five-pass ARBed sample achieved the lowest corrosion current density (0.103 µA/cm<sup>2</sup>) and corrosion rate (0.0113&#xa0;mm/year), reflecting a 98.5% improvement compared to the as-received condition. Immersion tests conducted in eight different media including acidic, alkaline, neutral, and saline environments further confirmed up to 74% reduction in weight loss for the five-pass sample. Additionally, microhardness improved from 52 to 78 HV, with better retention after corrosion exposure. These findings establish ARB as an effective method for enhancing corrosion resistance and mechanical strength of 5052 aluminum alloy, making it suitable for structural applications in marine, aerospace, and chloride-rich environments.</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

Corrosion Behavior of 5052 Aluminum Alloy Processed by Accumulative Roll Bonding

  • 期刊论文

  • 发表日期：

    2025年7月19日

查看全文
  • Vijay Pratap Singh,
  • Tahir Ahmad Dar,
  • Manoj Kumar,
  • Gaurav Kumar Gupta,
  • Srinibash Mishra

摘要

This study investigates the effect of Accumulative Roll Bonding (ARB) on the corrosion behavior and mechanical properties of 5052 aluminum alloy. ARB processing was applied up to five passes to fabricate multilayered structures, and the samples were tested under various corrosive conditions to evaluate improvements in durability. Electrochemical techniques, including potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), were performed in 3.5% NaCl solution to assess the stability of passive films and corrosion kinetics. Results showed that the five-pass ARBed sample achieved the lowest corrosion current density (0.103 µA/cm2) and corrosion rate (0.0113 mm/year), reflecting a 98.5% improvement compared to the as-received condition. Immersion tests conducted in eight different media including acidic, alkaline, neutral, and saline environments further confirmed up to 74% reduction in weight loss for the five-pass sample. Additionally, microhardness improved from 52 to 78 HV, with better retention after corrosion exposure. These findings establish ARB as an effective method for enhancing corrosion resistance and mechanical strength of 5052 aluminum alloy, making it suitable for structural applications in marine, aerospace, and chloride-rich environments.