Solid-state bonding of A6061/high-tensile steel plate by metal salt generation bonding technique with acetic acid

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  • Koyama Shinji
    Graduate School of Science and Technology, Gunma University
  • Ozawa Kohei
    Graduate School of Science and Technology, Gunma University Graduate Student, Graduate School of Science and Technology, Gunma University
  • Muraoka Takako
    Graduate School of Science and Technology, Gunma University

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  • 酢酸を用いた金属塩生成接合法によるA6061／高張力鋼板の固相接合
  • サクサン オ モチイタ キンゾクエン セイセイ セツゴウホウ ニ ヨル A6061/コウチョウリョク コウバン ノ コソウ セツゴウ

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Abstract

<p>The effect of aluminum acetate coating treatment on the bod strength of the solid-state bonded interface of A6061 aluminum alloy and high-tensile steel plate was investigated by SEM observation of fractured surfaces and interfacial microstructures. The surface of the aluminum alloy was coated by boiling in 5% aqueous solution of NaOH for 20 s and 99.7% acetic acid. Bonding process was performed at bonding temperature of 713–753 K under a load of 20 MPa and bonding time of 900 s. As the result of this study, it was found that the bond strength of the joint increased with the rise in bonding temperature regardless of metal salt coating treatment. Also, it was revealed that with metal salt coating treatment, high tensile strength joint can be obtained lower bonding temperature. From this experimental results, it is inferred that metal salt coating treatment is effective in removing the oxide film and substitution to an aluminum acetate on the aluminum alloy surface.</p>

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