Superplasticity Enhanced by Two-stage Deformation in a Hot-extruded AZ61 Magnesium Alloy
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) | 71-74 |
| Journal / Publication | Journal of Materials Science and Technology |
| Volume | 21 |
| Issue number | 1 |
| Publication status | Published - 28 Jan 2005 |
| Externally published | Yes |
Link(s)
| Document Link | Links
|
|---|---|
| Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-15244344902&origin=recordpage |
| Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(722bfff8-28f8-43e0-8623-998b4878050f).html |
Abstract
A two-stage strain rate deformation method is proposed to enhance the superplasticity in a hot extruded AZ61 alloy. In the stage-one of deformation, a relatively high strain rate was applied in order to obtain fine grains through dynamic recrystallization. The optimum strain rate for DRX at 300°C was identified as ∼5×10-3 s-1. Stage-two is conducted at relatively low strain rate in order to utilize the fine grains refined by DRX during stage-one to make the grain boundary sliding operate more smoothly, which resulting in enhanced superplastic elongation from 350% to 440%.
Research Area(s)
- AZ61 magnesium alloy, Dynamic recrystallization, Grain boundary sliding, Superplasticity
Citation Format(s)
Superplasticity Enhanced by Two-stage Deformation in a Hot-extruded AZ61 Magnesium Alloy. / WANG, Yinong; Huang, J.C.
In: Journal of Materials Science and Technology, Vol. 21, No. 1, 28.01.2005, p. 71-74.
In: Journal of Materials Science and Technology, Vol. 21, No. 1, 28.01.2005, p. 71-74.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
