619 Fabrication Process and Mechanical Properties of Fine Grained Aluminum Alloy by Multi-axial Alternative Forging
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概要
- 論文の詳細を見る
It is well known that the mechanical properties increase rapidly with refining on grain size less than 1μm In this study, to obtain fine grained materials, we developed a novel high straining process easily applicable to bulk materials, that is, Multi-axial Alternative Forging (MAF), in which the work pieces were rotated by 90°on the longitudinal axis in each forging process performed at 543K for the Al-Mg alloy. The MAFed materials showed a significant developed microstructure having grain sizes less than 1μm. The most of fine grains were surrounded by high-angle and random boundaries. The strength increases with an increase of pre- straining without a decrease of ductility. As described above, MAF process is one of the most effective methods to produce fine-grained structure and enhance of its mechanical properties.
- 一般社団法人日本機械学会の論文
著者
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NODA Masafumi
Department of Thoracic Surgery, institute of Development, Aging, and Cancer, Tohoku University
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Noda Masafumi
Department Of Artificial System Science And Engineering Graduate School Of Science And Technology Ch
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Noda Masafumi
Department Of Artificial System And Engineering Chiba University
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FUNAMI Kunio
Department of Machinery Engineering, Chiba Institute of Technology
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Funami Kunio
Department Of Machinery Engineering Chiba Institute Of Technology
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HIROHASHI Mitsuji
Faculty of Engineering, Chiba University
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Suwahara Yutaka
Department of Mechanical Engineering, Chiba Institute of Technology
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Suwahara Yutaka
Department Of Mechanical Engineering Chiba Institute Of Technology
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Hirohashi Mitsuji
Faculty Of Engineering Chiba University
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