Creep properties of aluminum-based composite containing multi-walled carbon nanotubes
Creep properties of aluminum-based composite containing multi-walled carbon nanotubes
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DOI:
10.1016/j.scriptamat.2011.03.038
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发表时间:
2011-08
影响因子:
6
通讯作者:
H. Choi;D. Bae
中科院分区:
文献类型:
--
作者:
H. Choi;D. Bae
Aluminum and aluminum-based composites containing 4.5 vol.% multi-walled carbon nanotubes (MWCNTs) are fabricated by hot-rolling the ball-milled powder, and their creep behavior is investigated at 523 K. The composite shows much enhanced creep resistance at the applied stresses higher than 200 MPa. In the relatively low applied stress region (stresses below 110 MPa), however, the composite shows negligible dependency of strain rate on stress because the diffusional flow of the matrix is significantly restricted by MWCNTs.