Superplasticity in doubly extruded magnesium composite ZK60/SiC/17p
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 32-35 |
| Journal / Publication | Materials Science and Technology |
| Volume | 14 |
| Issue number | 1 |
| Publication status | Published - Jan 1998 |
| Externally published | Yes |
Link(s)
Abstract
Superplasticity in a doubly extruded magnesium based composite, ZK60 reinforced with 17 vol.-%SiC particles, was investigated. The influences of strain rate on the flow stress and elongation in the composite were characterised. It was found that the composite exhibited superplasticity (elongation > 400%) at high strain rates (∼0.1 s-1). In addition, the material showed a high strain rate sensitivity of 0.5 and an activation energy of 81 kJ mol-1 in the superplastic region. Based upon these results, it was proposed that the dominant deformation mechanism is grain boundary sliding accommodated by a grain boundary diffusion process. A comparison of the superplastic behaviour was also made between the doubly extruded and singly extruded composites. © 1998 The Institute of Materials.
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Citation Format(s)
Superplasticity in doubly extruded magnesium composite ZK60/SiC/17p. / Mukai, T.; Nieh, T. G.; Iwasaki, H. et al.
In: Materials Science and Technology, Vol. 14, No. 1, 01.1998, p. 32-35.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
