Equal-channel angular extrusion of lotus-type porous copper

S. Suzuki*, H. Nakajima, H. Utsunomiya

*この研究の対応する著者

研究成果: Conference contribution

抄録

Deformation behavior of lotus-type porous copper with long cylindrical pores aligned in one direction through ECAE (Equal-Channel Angular Extrusion) process was investigated with using dies with channel angles 90° and 150°. The lotus-copper rod was densified by the uni-axial compression in the entry channel, and the pores were thinned and elongated by shearing at the corner of the 90°-die. The inclination angle of the elongated thinned pores can be explained by a geometric deformation model considering the densification. After the second path of the ECAE the pores were either further thinned and elongated or opened again according to the pass route. Extrusion through the 150°-die changed the pore morphologies little. The Vickers hardness increased through the ECAE process. It was found from these results that it may be possible to improve the mechanical properties of the metallic parts of porous metals and to control the pore morphology by means of the ECAE process.

本文言語English
ホスト出版物のタイトルMetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams
ページ205-208
ページ数4
出版ステータスPublished - 2008 11 27
外部発表はい
イベント5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007 - Montreal, QC, Canada
継続期間: 2008 9 52008 9 7

出版物シリーズ

名前MetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams

Other

Other5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007
国/地域Canada
CityMontreal, QC
Period08/9/508/9/7

ASJC Scopus subject areas

  • 金属および合金

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