Structural relaxation on Fe44Ni38B18 amorphous alloy by Young's modulus measurements

1992 ◽  
Vol 27 (8) ◽  
pp. 1045-1048 ◽  
Author(s):  
J Moya ◽  
F Audebert ◽  
H Sirkin
Keyword(s):  
Amorphous Alloy ◽  
Young’S Modulus ◽  
Structural Relaxation ◽  
Young's Modulus

Internal Friction and Elastic Modulus Change Associated with Structural Relaxation and Crystallization in Amorphous Mg-Ni-Y Alloys.

2000 ◽  
Vol 644 ◽  
Author(s):  
Y. M. Soifer ◽  
N. P. Kobelev ◽  
E. Korin ◽  
L. Soifer ◽  
D. Mogilyanskii ◽  
...  
Keyword(s):  
Internal Friction ◽  
Young’S Modulus ◽  
Structural Relaxation ◽  
Intermediate Phase ◽  
Young's Modulus ◽  
Crystallization Kinetic ◽  
Kinetic Studies ◽  
Mechanical Spectroscopy ◽  
Heating And Cooling ◽  
Vibrating Reed

AbstractMechanical spectroscopy technique has been applied to investigation of structural relaxation and crystallization of Mg-Ni-Y amorphous alloys of different composition. The composition of the alloys was varied due to change of yttrium concentration from 0 to 7 at.%. The internal friction (IF) and Young's modulus have been measured by a vibrating reed method at frequency of ∼200 Hz at heating and cooling runs in the temperature range from 300K to 650K. Crystallization kinetic studies of the alloys by DSC and XRD showed that the transition from amorphous to crystalline state in the Mg-Ni-Y alloys has gone through several stages with origination of intermediate phase. IF spectra and Young's modulus of the alloys have been analyzed and the effect of yttrium content on the stability of intermediate phase was investigated.

Crystallization and nanoindentation behavior of a bulk Zr–Al–Ti–Cu–Ni amorphous alloy

2000 ◽  
Vol 15 (3) ◽  
pp. 798-807 ◽  
Author(s):  
J. G. Wang ◽  
B. W. Choi ◽  
T. G. Nieh ◽  
C. T. Liu
Keyword(s):  
Mechanical Properties ◽  
Amorphous Alloy ◽  
Young’S Modulus ◽  
Annealing Temperature ◽  
Young's Modulus ◽  
Bulk Amorphous Alloy ◽  
Crystallization Path ◽  
Microstructure Of The Material ◽  
Existing Data ◽  
Interatomic Bonding

The crystallization and nanoindentation behavior of a Zr–10Al–5Ti–17.9Cu–14.6Ni (at.%) bulk amorphous alloy (BAA) were studied. Resulting from the kinetic nature of phase transformation in multicomponent alloys, the crystallization path is complex. Despite the complexity of different crystallization paths, the main final crystallized product in the Zr-based BAA is Zr2Cu. Young's modulus and hardness of the BAA were found to increase with an increase in annealing temperature. The observed mechanical properties were correlated with the microstructure of the material. Also, in the present paper, both the observed crystallization and nanoindentation behavior are compared with existing data. Zr-based BAAs exhibit a ratio of hardness to Young's modulus (H/E ratio) of about 1/10, suggesting the interatomic bonding in the alloys is close to being covalent.

Changes in the Young's modulus during structural relaxation of a metallic glass

1980 ◽  
Vol 14 (12) ◽  
pp. 1303-1308 ◽  
Author(s):  
A. Kursumović ◽  
M.G. Scott ◽  
E. Girt ◽  
R.W. Cahn
Keyword(s):  
Metallic Glass ◽  
Young’S Modulus ◽  
Structural Relaxation ◽  
Young's Modulus
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