The effect of primary crystallizing phases on mechanical properties of Cu46Zr47Al7 bulk metallic glass composites

2006 ◽  
Vol 21 (10) ◽  
pp. 2638-2645 ◽  
Author(s):  
F. Jiang ◽  
Z.B. Zhang ◽  
L. He ◽  
J. Sun ◽  
H. Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Plastic Strain ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Martensite Phase ◽  
Compression Tests ◽  
High Fracture ◽  
Glass Composites ◽  
Bulk Metallic Glass Composites ◽  
Mold Casting

Cu46Zr47Al7 bulk metallic glass (BMG) and its composites in plate with different thicknesses up to 6 mm were prepared by copper mold casting. Primary crystallizing phases with different microstructures and volume fractions could be obtained under different cooling rates, forming some composites with different mechanical properties. Under compression tests, the 2-mm-thick monolithic BMG has a yield strength of 1894 MPa and a high fracture strength of up to 2250 MPa at plastic strain up to 6%, exhibiting apparent “work-hardening” behavior. The 4-mm-thick Cu46Zr47Al7 BMG composite containing martensite phase yields at 1733 MPa and finally fails at 1964 MPa with a plastic strain of 3.7%.

Formation and Mechanical Properties of Mg-Cu-Al-Gd Bulk Metallic Glass Composites

2010 ◽  
Vol 650 ◽  
pp. 290-294
Author(s):  
Yi Ming Wang ◽  
Li Jing Zheng ◽  
Shu Jie Pang
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glassy Alloy ◽  
Glassy Matrix ◽  
Crystalline Phases ◽  
Glass Composites ◽  
Al Content ◽  
Bulk Metallic Glass Composites ◽  
Mold Casting

The effect of Al addition to Mg65Cu25Gd10 glassy alloy on the microstructure, thermal properties and mechanical properties were investigated. The Mg65Cu25-xAlxGd10 (x=1-7at. %) bulk metallic glass composites were formed by copper mold casting, and the fraction and size of the crystalline phases in the glassy matrix changed with the Al content. The Mg65Cu24Al1Gd10 glass composite consisted of a small amount of crystalline phases in the glassy matrix possesses high compressive strength up to about 850 MPa.

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
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