Mechanical properties and fracture behavior of the modified Ti-base bulk metallic glass-forming alloys

2006 ◽  
Vol 60 (5) ◽  
pp. 656-661 ◽  
Author(s):  
G. He ◽  
J. Eckert ◽  
M. Hagiwara
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Fracture Behavior ◽  
Glass Forming

Effect of mechanical-annealing on the mechanical properties of a Zr-based bulk metallic glass

2019 ◽  
Vol 33 (01n03) ◽  
pp. 1940052
Author(s):  
P. Deng ◽  
X. C. Wang ◽  
F. Zhang ◽  
X. M. Qin ◽  
P. Gao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Yield Strength ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Room Temperature ◽  
Constant Pressure ◽  
Aging Treatment ◽  
Model Material ◽  
Glass Forming ◽  
Plastic Stage

The mechanical-annealing referred in this work is also named pre-strain, which is widely investigated in TRIP steel, stainless steel, magnesium alloy and aluminum alloy. In this case, we used preloading to input energy into a bulk metallic glass (BMG) to observe the changes in the structure and mechanical properties. We selected Zr[Formula: see text]Co[Formula: see text]Al[Formula: see text] BMG as a model material owning to its outstanding glass forming ability and excellent mechanical properties. The samples were kept at a constant pressure of 1900, 1700 and 1500 MPa (below the yield strength) for 40, 55 and 70 h. The study found out that the density of those samples increased after being pre-loaded. Then, the samples underwent aging treatment at room-temperature for more than 30 days after unloading. After re-compressing the samples, the results show that the yield strength and fracture strength of the samples decreased, and the amplitude of the serrated plastic flow increased during the plastic stage. Our finding might have some implications for understanding the plastic deformation of BMGs.

Mg–Ni–Gd–Ag bulk metallic glass with improved glass-forming ability and mechanical properties

2011 ◽  
Vol 19 (7) ◽  
pp. 829-832 ◽  
Author(s):  
Hao Peng ◽  
Shuang Shou Li ◽  
Yun Peng Qi ◽  
Tian You Huang
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Forming Ability ◽  
Glass Forming

The Effect of Purity of Zirconium Material on Mechanical Properties and Microstructure of Zr-Based Bulk Metallic Glass

2011 ◽  
Vol 189-193 ◽  
pp. 2897-2902
Author(s):  
Guang Qiao Liu ◽  
Sheng Zhong Kou ◽  
Chun Yan Li ◽  
Yan Chun Zhao ◽  
Hong Li Suo
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
High Purity ◽  
Compression Fracture ◽  
Bulk Amorphous Alloy ◽  
Casting Method ◽  
Glass Forming ◽  
Purity Material ◽  
Fracture Surface Analysis

Series of rod samples of Zr55Al10Ni5Cu30 alloy were prepared by magnetic suspend melting and copper mold suction casting method using 99.9wt% high purity zirconium and 99.4wt% low purity sponge zirconium respectively, the effect of purity of zirconium material on mechanical properties and microstructure of Zr-based bulk metallic glass were investigated. The result shows that high purity material alloy could enhance the thermal stability and glass forming ability of Zr-based bulk amorphous alloy, compression fracture surface analysis indicate that the vein patterns density increase with the material elements purity increase, the average compressive fracture strength is increased to 8.52% than that of low purity samples.

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