Sahu, Rina and Gangopadhyay, A K and Kelton, K F and Chatterjee, S and Sahoo, K L (2009) Room temperature ageing of Al–Ni–RE (RE = La, Gd, Er) metallic glasses. Scripta Materialia, 61 (6). pp. 588-591.
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Abstract
The effect of long-term ageing of Al–TM–RE (TM = Ni, Ag, Cu; RE = rare earth) amorphous alloys under ambient conditions, and at a slightly elevated temperature (100 °C), has been studied. The phase evolution and devitrification kinetics were studied using differential scanning calorimetry, X-ray diffraction and transmission electron microscopy techniques. Partial crystallization was observed in Al89Ni6La5, Al87Ni6La7, Al87Ni5(Ag/Cu)1La7 alloys after several years under ambient conditions (20–50 °C), and in Al88Ni4La8, Al88Ni4Gd2Er6 and Al88Ni4Er8 alloys following a 90 h anneal at 100 °C.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | http://dx.doi.org/10.1016/j.scriptamat.2009.05.032 |
| Uncontrolled Keywords: | Al–Ni–RE amorphous alloys; Room temperature ageing; Activation energy; Differential scanning calorimetry |
| Divisions: | Metal Extraction and Forming |
| ID Code: | 19 |
| Deposited By: | Dr. A K Sahu |
| Deposited On: | 22 Sep 2009 13:05 |
| Last Modified: | 08 Feb 2012 17:19 |
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