TY - GEN
T1 - Impact properties of lotus-type porous carbon steel measured by instrumented charpy testing
AU - Kujime, T.
AU - Hyun, S. K.
AU - Nakajima, H.
PY - 2008
Y1 - 2008
N2 - Porous metals were expected to use as a shock-absorbing material. Recently, as a new type of porous metal, lotus-type porous carbon steel (lotus steel) with homogenous pore size and porosity was fabricated by the continuous zone melting method. In this study, the impact properties of the lotus steel were investigated by an instrumented Charpy testing. The load-deflection curves were obtained and the absorbed energies for crack initiation or propagation were investigated. The total absorbed energy of the lotus steel was larger than that of the non-porous as cast steel. The influence of heat treatment on the impact properties was also investigated. The absorbed energy for crack initiation was almost constant regardless of heat treatment, while the absorbed energy for crack propagation increased with an increase of tempering temperature.
AB - Porous metals were expected to use as a shock-absorbing material. Recently, as a new type of porous metal, lotus-type porous carbon steel (lotus steel) with homogenous pore size and porosity was fabricated by the continuous zone melting method. In this study, the impact properties of the lotus steel were investigated by an instrumented Charpy testing. The load-deflection curves were obtained and the absorbed energies for crack initiation or propagation were investigated. The total absorbed energy of the lotus steel was larger than that of the non-porous as cast steel. The influence of heat treatment on the impact properties was also investigated. The absorbed energy for crack initiation was almost constant regardless of heat treatment, while the absorbed energy for crack propagation increased with an increase of tempering temperature.
UR - http://www.scopus.com/inward/record.url?scp=56549127407&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:56549127407
SN - 9781932078282
T3 - MetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams
SP - 217
EP - 220
BT - MetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams
T2 - 5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007
Y2 - 5 September 2008 through 7 September 2008
ER -