Abstract
A hydrogen-induced microcrystalline-to-nanocrystalline transformation was observed in an Al 2.3Ti alloy, following hydrogen charging. The uncharged αAl was composed of small equiaxed grains. After cathodic charging, a very fine microstructure composed of nanocrystals formed on the previously equiaxed grains was observed. Transmission electron microscopy and X-ray diffraction analysis show that both the microcrystalline and the nanocrystalline phases coexist during the cathodic charging process. Results show that the microcrystalline-to-nanocrystalline transformation is partially reversible.
Original language | English |
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Pages (from-to) | 1071-1077 |
Number of pages | 7 |
Journal | Scripta Materialia |
Volume | 40 |
Issue number | 9 |
DOIs | |
State | Published - 1 Jan 1999 |
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys