Tuning the Mechanical Properties of Shape Memory Metallic Glass Composites with Nature Inspired Designs

2020 ◽  
Author(s):  
Suyue Yuan ◽  
Xinxiang Song ◽  
Paulo S. Branicio
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Shape Memory ◽  
Glass Composites

Effect of B2 Phase Transformation on the Mechanical Behavior of CuZr-Based Bulk Metallic Glass Composites

2017 ◽  
Vol 898 ◽  
pp. 672-678
Author(s):  
Ran Wei ◽  
Juan Tao ◽  
Shi Lei Liu ◽  
Guo Wen Sun ◽  
Shuai Guo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Transformation ◽  
Martensitic Transformation ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Lower Yield ◽  
Glass Composites ◽  
Bulk Metallic Glass Composites ◽  
Lower Yield Strength ◽  
B2 Phase

The mechanical behavior of CuZr-based bulk metallic glass composites with different B2-CuZr phase transformation ability was investigated. The B2 phase transformation is conducive to enhance the mechanical properties of CuZr-based bulk metallic glass composites. The mechanical properties of the austenitic B2 phase specimens were also studied to understand the mechanism of phase transformation effect. It was found that the B2 phase with martensitic transformation exhibits lower yield strength and stronger work-hardening capability than the B2 phase without martensitic transformation. Thus, the phase transformation effect of B2-CuZr phase, accompanying with its lower yield strength and stronger work-hardening capability, is the main reason for the CuZr-based bulk metallic glass composites possess outstanding mechanical properties.

Laminar TiZr-based bulk metallic glass composites with improved mechanical properties

2018 ◽  
Vol 726 ◽  
pp. 231-239 ◽  
Author(s):  
Zhengkun Li ◽  
Xindong Qin ◽  
Zhengwang Zhu ◽  
Huameng Fu ◽  
Aimin Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Composites ◽  
Bulk Metallic Glass Composites

Formation of High-Strength Zr-Nb-Cu-Ni-Al Alloys by Warm Extrusion of Gas Atomized Powders

2003 ◽  
Vol 806 ◽  
Author(s):  
E. A. Rozhkova ◽  
X. Y. Yang ◽  
P. B. Wheelock ◽  
J. Eckert ◽  
U. Kühn ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
High Strength ◽  
Powder Particle Size ◽  
Gas Atomization ◽  
Ductile Phase ◽  
Cooling Rates ◽  
Glass Composites ◽  
Bcc Phase ◽  
Warm Extrusion

ABSTRACTRecently developed Zr-based metallic glass composites containing a ductile phase demonstrate improved mechanical properties such as high strength combined with good ductility compared to the glass monoliths. Zr-Nb-Cu-Ni-Al amorphous powders with bcc phase precipitates were obtained by high pressure gas atomization. Formation of the bcc phase in the amorphous matrix strongly depends on the material composition and cooling rates during solidification. Melt spinning using various wheel speeds selected to simulate the cooling rates during gas atomization was used to define a specific composition for gas atomization. Gas atomized powders were consolidated by warm extrusion. Various processing conditions including starting powder particle size, extrusion temperature and extrusion ratio were examined to obtain materials having various microstructural features. Structure and thermal stability of consolidated bulk metallic glass composites as well as selected mechanical properties will be discussed.

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