ULTRASONIC STUDIES OF METALLIC GLASSES AT LOW TEMPERATURES

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-517-C5-521
Author(s):  
G. Park ◽  
A. Hikata ◽  
C. Elbaum
1999 ◽  
Vol 580 ◽  
Author(s):  
T.K. Croat ◽  
A.K. Gangopadhyay ◽  
K.F. Kelton

AbstractThe crystallization kinetics of Al-Gd-La-Ni metallic glasses to nanostructured phases are analyzed using differential scanning calorimetry and transmission electron microscopy. In a narrow alloy composition range near Al88Gd6La2Ni4, TEM reveals an amorphous phase separation that occurs upon annealing at low temperatures prior to crystallization. Al-enriched regions, typically 40 nm in diameter, bounded by rare-earth rich regions, are visible. Upon crystallization, α-Al forms preferentially at the interface between these phase separated regions. The relevance of this crystallization sequence to previous work in Al-RE-TM glasses and to the evolution of nanoscale microstructures common in the crystallization of other metallic glasses are discussed.


2021 ◽  
Vol 103 (22) ◽  
Author(s):  
Arnold Meißner ◽  
Tim Voigtländer ◽  
Saskia M. Meißner ◽  
Uta Kühn ◽  
Susanne Schneider ◽  
...  

1987 ◽  
pp. 418-422
Author(s):  
F. Küß ◽  
A. Schulte ◽  
P. Löbl ◽  
E. Lüscher ◽  
G. Fritsch

1990 ◽  
Vol 165-166 ◽  
pp. 895-896 ◽  
Author(s):  
Roland Görlich ◽  
Jürgen Stockburger ◽  
Ulrich Weiss

1981 ◽  
Vol 24 (12) ◽  
pp. 7389-7392 ◽  
Author(s):  
G. Park ◽  
A. Hikata ◽  
C. Elbaum

1981 ◽  
Vol 8 ◽  
Author(s):  
Janez Megusar ◽  
Ali S. Argon ◽  
Nicholas J. Grant

ABSTRACTDeformation induced dilatations were measured on a Pd-Cu-Si glass by a differential dilatometric method during crystallization. At large pre-strains, these dilatations are large and of the order of 20%. Fracture surfaces of specimens in compression show either the characteristic features of tensile separation or evidence for repeated nucleation of fracture. Rubbing was observed only in a small fraction of a fracture surface.


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