Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | MetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams |
| Pages | 205-208 |
| Number of pages | 4 |
| Publication status | Published - 2008 |
| Externally published | Yes |
| Event | 5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007 - Montreal, QC Duration: 2008 Sep 5 → 2008 Sep 7 |
Other
| Other | 5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007 |
|---|---|
| City | Montreal, QC |
| Period | 08/9/5 → 08/9/7 |
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ASJC Scopus subject areas
- Metals and Alloys
Cite this
Equal-channel angular extrusion of lotus-type porous copper. / Suzuki, Shinsuke; Nakajima, H.; Utsunomiya, H.
MetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams. 2008. p. 205-208.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Equal-channel angular extrusion of lotus-type porous copper
AU - Suzuki, Shinsuke
AU - Nakajima, H.
AU - Utsunomiya, H.
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=56549126379&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=56549126379&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:56549126379
SN - 9781932078282
SP - 205
EP - 208
BT - MetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams
ER -