Comparison of Mechanical Properties in Ultrafine Grained Commercial-Purity Aluminum (A1050) Processed by Accumulative Roll Bonding (ARB) and High-Pressure Sliding (HPS)

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  • Tang Yongpeng
    Department of Mechanical Engineering and Materials Science, Yokohama National University Department of Materials Science and Engineering, Kyushu University Graduate School of Engineering, Kyushu Institute of Technology
  • Fujii Toshiki
    Department of Mechanical Engineering and Materials Science, Yokohama National University
  • Hirosawa Shoichi
    Department of Mechanical Engineering and Materials Science, Yokohama National University
  • Matsuda Kenji
    Graduate School of Science and Engineering, University of Toyama
  • Terada Daisuke
    Department of Mechanical Science and Engineering, Chiba Institute of Technology
  • Horita Zenji
    Department of Materials Science and Engineering, Kyushu University Graduate School of Engineering, Kyushu Institute of Technology Magnesium Research Center, Kumamoto University Synchrotron Light Application Center, Saga University

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Other Title
  • 繰返し重ね接合圧延（ARB）と高圧スライド（HPS）加工によって作製した超微細粒工業用純アルミニウム（A1050）の機械的性質の比較

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<p>This study presents that A1050 commercial-purity aluminum increases the tensile strength and ductility using the processes of accumulative roll bonding (ARB) and high-pressure sliding (HPS). Both processes yield a similar tensile strength exceeding 240 MPa after processing by ARB for 10 cycles and by HPS for the sliding distance of 15 mm, respectively. The stress-strain behavior is evaluated through microstructure observations and measurements of strain hardening rates. Significant grain refinement with well-defined grain boundaries is responsible for the strength increase. The grain refinement also leads to an increase in strain hardening rate and thus an increase in the ductility.</p>

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