Characterization of Grain Boundary Properties in Superplastic Al Based Alloys Using EBSD
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) | 381-386 |
Journal / Publication | Materials Science Forum |
Volume | 357-359 |
Online published | 15 Jan 2001 |
Publication status | Published - 2001 |
Externally published | Yes |
Conference
Title | Superplasticity in Advanced Materials (ICSAM-2000) |
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Place | United States |
City | Orlando, FL |
Period | 1 - 4 August 2000 |
Link(s)
Abstract
The grain boundary characteristics in the 1050, 5052, 5083, 6061 and 1420 LTSP Al alloys were examined using EBSD as a function of TMT and LTSP deformation true strain from 1.5-12.0. The grain boundary character was observed to evolve continuously during TMT and LTSP deformation. With increasing accumulated deformation strain, the bimodal grain boundary misorientation distribution gradually transformed into semi-random behavior. For different alloys under cold or warm working, the minimum working strain to achieve a semi-random grain boundary misorientation distribution favorable for GBS and LTSP varied accordingly. Only minor variation was observed for the CSL boundary fraction during TMT and LTSP deformation. Still over 80% of the MAB+HAB belonged to random higher angle boundaries that could proceed GBS. No apparent relationship was seen for the CSL population and LTSP performance.
Research Area(s)
- Al Alloy, CSL Boundaries, EBSD, Grain Boundary, Low Temperature Superplasticity, Misorientation Angle
Citation Format(s)
Characterization of Grain Boundary Properties in Superplastic Al Based Alloys Using EBSD. / Hsiao, I.C.; Huang, J.C.
In: Materials Science Forum, Vol. 357-359, 2001, p. 381-386.
In: Materials Science Forum, Vol. 357-359, 2001, p. 381-386.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review