Superplastlcity of a Cu-Zn-Sn alloy processed by equal-channel angular pressing

Koji Neishi, Toru Uchida, Nobuyuki Ashie, Atsushi Yamauchi, Katsuaki Nakamura, Zenji Horita, Terence G. Langdon

    研究成果: ジャーナルへの寄稿会議記事査読


    Equal-channel angular pressing (ECAP) was conducted using dies having two different channel angles, Φ=90° and 135°, for grain refinement of a Cu-38%Zn-3%Sn alloy. Orientation image microscopy (OIM) was used for microstructural observations and phase identification including the analysis of misorientation angles. Tensile testing and upset testing were carried out at elevated temperatures to examine the superplastic ductility and the formability of the alloy. The grain refinement was achieved effectively by conducting the ECAP at a temperature where a phase transformation occurs. The use of a die having Φ=90° led to a finer grain size with a larger fraction of high angle grain boundaries than using a die having Φ=135°.

    ジャーナルMaterials Science Forum
    出版ステータス出版済み - 1月 1 2004
    イベントSuperplasticity in Advanced Materials: 8th International Conference on Superplasticity in Advanced Materials, ICSAM 2003 - Oxford, 英国
    継続期間: 7月 28 20037月 30 2003

    !!!All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学


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