Effect of aspect ratio on the mechanical properties of metallic glasses

2014 ◽  
Vol 93 ◽  
pp. 36-39 ◽  
Author(s):  
Z.D. Sha ◽  
L.C. He ◽  
S. Xu ◽  
Q.X. Pei ◽  
Z.S. Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aspect Ratio ◽  
Metallic Glasses

Effects of aspect ratio and loading rate on room-temperature mechanical properties of Cu-based bulk metallic glasses

2016 ◽  
Vol 26 (10) ◽  
pp. 2617-2632 ◽  
Author(s):  
An-hui CAI ◽  
Yong LIU ◽  
Hong WU ◽  
Da-wei DING ◽  
Wei-ke AN ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aspect Ratio ◽  
Metallic Glasses ◽  
Room Temperature ◽  
Loading Rate ◽  
Bulk Metallic Glasses

scholarly journals Effect of Deformation Conditions on Mechanical Properties of Zr-based Metallic Glasses

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Zhenxiang ZHAO ◽  
Chunyan LI ◽  
Fuping ZHU ◽  
Xinling LI ◽  
Shengzhong KOU
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Aspect Ratio ◽  
Plastic Strain ◽  
Strain Rate ◽  
Fracture Strength ◽  
Metallic Glasses ◽  
Room Temperature

In this paper, the effects of different strain rate(1×10-5 s-1, 5×10-5 s-1, 1×10-4 s-1, 5×10-4 s-1, 1×10-3 s-1) and aspect ratio(1:1, 1.5:1, 2:1, 2.5:1, 3:1) on mechanical properties of Zr-based metallic glasses at room temperature were investigated. The results indicate that as the strain rate increases, the plastic strain and compressive strength of the specimens gradually decrease. The specimen with the strain rate of 1×10-5 s-1 exhibits the higher plastic strain of 10.25 %, compressive strength of 2002 MPa and fracture strength of 1999 MPa. In addition, accompanied with the increase in aspect ratio, the plastic strain of the specimens declines from 25.42 % to 1.97 %, meanwhile, the compressive strength and fracture strength of the specimens also present declining trend.

scholarly journals Effects of Steel Fiber Percentage and Aspect Ratios on Fresh and Harden Properties of Ultra-High Performance Fiber

2021 ◽  
Vol 2 (3) ◽  
pp. 501-515
Author(s):  
Rajib Kumar Biswas ◽  
Farabi Bin Ahmed ◽  
Md. Ehsanul Haque ◽  
Afra Anam Provasha ◽  
Zahid Hasan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aspect Ratio ◽  
High Performance ◽  
Steel Fiber ◽  
Setting Time ◽  
Fiber Reinforced Concrete ◽  
Future Research ◽  
Manufacturing Cost ◽  
Aspect Ratios ◽  
High Performance Fiber

Steel fibers and their aspect ratios are important parameters that have significant influence on the mechanical properties of ultrahigh-performance fiber-reinforced concrete (UHPFRC). Steel fiber dosage also significantly contributes to the initial manufacturing cost of UHPFRC. This study presents a comprehensive literature review of the effects of steel fiber percentages and aspect ratios on the setting time, workability, and mechanical properties of UHPFRC. It was evident that (1) an increase in steel fiber dosage and aspect ratio negatively impacted workability, owing to the interlocking between fibers; (2) compressive strength was positively influenced by the steel fiber dosage and aspect ratio; and (3) a faster loading rate significantly improved the mechanical properties. There were also some shortcomings in the measurement method for setting time. Lastly, this research highlights current issues for future research. The findings of the study are useful for practicing engineers to understand the distinctive characteristics of UHPFRC.

Effects of Al replacement on glass forming ability and mechanical properties of Zr-based bulk metallic glasses

2021 ◽  
Vol 568 ◽  
pp. 120962
Author(s):  
Y. Tan ◽  
Y.W. Wang ◽  
X.W. Cheng ◽  
Q. Fu ◽  
Z.H. Xin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Glass Forming Ability ◽  
Glass Forming

Influence of Melt Temperature on Compressive Plasticity of a Cu-Zr-Al Bulk Metallic Glass

2010 ◽  
Vol 146-147 ◽  
pp. 517-521
Author(s):  
Sheng Hui Xie ◽  
Xie Rong Zeng ◽  
Dong Ju Fu ◽  
Lei Zhao ◽  
Qiang Hu
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Metallic Glasses ◽  
Mechanical Performance ◽  
Casting Temperature ◽  
Thermal And Mechanical Properties ◽  
Micro Hardness ◽  
Melt Temperature ◽  
Hardness Tests ◽  
Important Solution

Cu47.5Zr47.5Al5 bulk metallic glasses (BMGs) were cast from the melt temperature 1143 to 1373 K. The structure, thermal and mechanical properties of the BMGs were investigated by XRD, DSC, HRTEM, dilatometric measurements, micro-hardness tests and uniaxial compression. The results indicate that the microstructure and mechanical performance of BMGs are closely affected by the casting temperature. Proper casting temperature ensures the BMGs with large relaxed excess free volume (REFV) and nano-crystallites, which favor the plastic deformation in Cu47.5Zr47.5Al5 BMGs. Regulating the preparing parameters is an important solution to good plasticity in BMGs.

scholarly journals Effect of Sn addition on the glass-forming ability and mechanical properties of Ni-Nb-Zr bulk metallic glasses

2011 ◽  
Vol 56 (36) ◽  
pp. 3926-3931 ◽  
Author(s):  
DengKe Li ◽  
HaiFeng Zhang ◽  
AiMin Wang ◽  
ZhengWang Zhu ◽  
ZhuangQi Hu
Keyword(s):  
Mechanical Properties ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Glass Forming Ability ◽  
Glass Forming

Bulk metallic glasses based on precious metals: Thermal treatments and mechanical properties

2015 ◽  
Vol 63 ◽  
pp. 73-79 ◽  
Author(s):  
S. Cardinal ◽  
J. Qiao ◽  
J.M. Pelletier ◽  
H. Kato
Keyword(s):  
Mechanical Properties ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Precious Metals ◽  
Thermal Treatments

Reverse Plasticity in Nanoindentation

2007 ◽  
Vol 1049 ◽  
Author(s):  
Yongjiang Huang ◽  
Nursiani Indah Tjahyono ◽  
Jun Shen ◽  
Yu Lung Chiu
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Glass Transition ◽  
Single Crystal ◽  
Metallic Glasses ◽  
Deformation Mechanisms ◽  
Glass Transition Temperatures ◽  
Loading Rates ◽  
Nanoindentation Experiment ◽  
Properties Of Materials

AbstractThis paper summarises our recent cyclic nanoindentation experiment studies on a range of materials including single crystal and nanocrystalline copper, single crystal aluminium and bulk metallic glasses with different glass transition temperatures. The unloading and reloading processes of the nanoindentation curves have been analysed. The reverse plasticity will be discussed in the context of plastic deformation mechanisms involved. The effect of loading rates on the mechanical properties of materials upon cyclic loading will also be discussed.

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