Ductility enhancement at elevated temperatures in a ZK60-based composite
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 261-268 |
Journal / Publication | Materials Science Forum |
Volume | 233-234 |
Publication status | Published - 1997 |
Externally published | Yes |
Link(s)
Abstract
A magnesium-based composite, ZK60/SiC/17p, has recently been shown to exhibit superplasticity at high strain rates. In this paper, two types of composite, as-received (AR) and thermomechanically processed (TMP), were investigated. Both composites exhibited superplasticity. As a result of the additional thermomechanical processing, the TMP composite had a more uniform microstructure and as showed a superplastic elongation in excess of 450% at a strain rate of 0.1 s-1, twice as great as that obtained from the AR composite. Cavitation behavior was characterized. Volume fractions of cavities were measured for the two composites as a function of strain. It was found that the cavity growth rate in the AR material was much greater than that in the TMP material. This may explain the observed larger elongation in the TMP composite as compared to the AR composite.
Research Area(s)
- Cavity Growth, Elongation, High Strain Rate Superplasticity, Magnesium-Based Composite, Thermomechanical Process
Bibliographic Note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
Citation Format(s)
Ductility enhancement at elevated temperatures in a ZK60-based composite. / Mukai, T.; Nieh, T. G.; Higashi, K.
In: Materials Science Forum, Vol. 233-234, 1997, p. 261-268.
In: Materials Science Forum, Vol. 233-234, 1997, p. 261-268.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review