Thermal Stability of Bulk Metallic Glasses. Influence on Mechanical Properties

1998 ◽  
Vol 554 ◽  
Author(s):  
J. M. Pelletier ◽  
Y. Jacquemard ◽  
J. Perez ◽  
R. Perrier de la Bathie
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Glass Transition ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Atomic Mobility ◽  
Heating Rates ◽  
Characteristic Temperatures ◽  
Shear Elastic Modulus ◽  
Thermal Stability Of

AbstractTwo Zr-base bulk metallic glasses were investigated in the present work. DSC experiments were performed at different heating rates (dT/dt). Evolution of the characteristic temperatures, glass transition and onset of crystallisation, were determined as a function of dT/dt. Evolution of shear elastic modulus and internal friction are measured as a function of temperature and resulting microstructural evolution; these evolutions are related to variation of the atomic mobility.

Bulk Metallic Glasses: Aluminum-Based

2019 ◽  
Author(s):  
B.J. Yang ◽  
J.H. Yao ◽  
J.Q. Wang ◽  
Y.S. Chao ◽  
E. Ma
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Thermal Properties ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Systematic Investigation ◽  
Glass Forming Ability ◽  
Atomic Cluster ◽  
Glass Forming ◽  
Thermal Stability Of

This paper details a systematic investigation of the formation of Al-based bulk metallic glasses, expanding on an earlier brief report.[] We discuss an approach for designing and predicting the best glass-forming composition in the Al–TM–RE systems, based on the atomic cluster packing model for the internal structure of the glass. The effects of additional elements in quaternary and quinary systems on the glass-forming ability and thermal stability of the glasses are also discussed. Three new compositions, Al86Ni6Y4.5Co2La1.5, Al86Ni7Y5Co1La1 and Al86Ni7Y4.5Co1La1.5, are capable of forming fully glassy rods of 1 mm in diameter; their glass transition and other thermal properties are systematically characterized.

scholarly journals Synthesis and Properties of Bulk Metallic Glasses in Pd-Ni-P and Pd-Cu-P Alloys

1996 ◽  
Vol 455 ◽  
Author(s):  
Y. He ◽  
R. B. Schwarz
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Metallic Glasses ◽  
Amorphous Alloys ◽  
Composition Range ◽  
Wide Composition Range ◽  
Upper Limit ◽  
Ternary Alloy Systems ◽  
The Difference ◽  
Thermal Stability Of

ABSTRACTBulk amorphous Pd-Ni-P and Pd-Cu-P alloy rods with diameters ranging from 7 to 25 mm have been synthesized over a wide composition range using a fluxing technique. For most bulk amorphous Pd-Ni-P alloys, the difference ΔT = Tx - Tg between the crystallization temperature Tx and the glass transition temperature Tg is larger than 90 K, while for bulk amorphous Pd-Cu-P alloys, ΔT varies from 27 to 73 K. Pd40Ni40P20 has the highest glass formability, and 300-gram bulk amorphous cylinders, 25 mm in diameter and 50 mm in length, can be easily produced. This size, however, is not an upper limit. The paper presents the glass formation ranges for both ternary alloy systems and data on the thermal stability of the amorphous alloys, as well as their specific heat, density, and elastic properties.

Predicting the thermal stability of RE-based bulk metallic glasses

2010 ◽  
Vol 18 (1) ◽  
pp. 74-76 ◽  
Author(s):  
Ailong Zhang ◽  
Ding Chen ◽  
Zhenhua Chen
Keyword(s):  
Thermal Stability ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Thermal Stability Of

Thermal stability, magnetic and mechanical properties of Fe–Dy–B–Nb bulk metallic glasses with high glass-forming ability

2014 ◽  
Vol 46 ◽  
pp. 85-90 ◽  
Author(s):  
Jiawei Li ◽  
Weiming Yang ◽  
Diana Estévez ◽  
Guoxin Chen ◽  
Wenguang Zhao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Glass Forming Ability ◽  
Glass Forming
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