Tribological Behaviors of Bulk Metallic Glasses

2007 ◽  
Vol 353-358 ◽  
pp. 823-826
Author(s):  
Jian Kong ◽  
Dang Sheng Xiong ◽  
Xin Min Fan ◽  
Jian Liang Li ◽  
Qun Xing Yuan
Keyword(s):  
Wear Resistance ◽  
Metallic Glasses ◽  
Testing Machine ◽  
Bulk Metallic Glasses ◽  
Distilled Water ◽  
Experimental Conditions ◽  
Wear Rates ◽  
Pin On Disc ◽  
Fresh Plasma ◽  
Lubrication Conditions

The tribological properties of Zr-based and Cu-based bulk metallic glasses (BMGs) sliding against discs of SUS 304 and Si3N4 at room temperature under dry and lubrication of fresh plasma, distilled water, and physiological distilled water were investigated on a pin-on-disc testing machine. The results demonstrated the influences of counterface materials, lubrication conditions and the characteristics of BMGs on the frictional behaviors of the Cu- and Zr-based BMGs. It is found that the steady state friction coefficients and the wear rates sometimes are not consistent, and the wear resistance was been improved when the counterface change from SUS304 to Si3N4. Otherwise, wear rates of the BMGs under lubrication conditions are much lower than that of under dry sliding conditions, and the Cu-based BMGs exhibits higher wear resistance than Zr-based BMGs under same experimental conditions because it is a nanocrystalline amorphous alloy and has the higher glass transition and crystallization temperatures.

Bio-Tribological Properties of Bulk Metallic Glasses Sliding Against Si3N4

2007 ◽  
Vol 330-332 ◽  
pp. 1215-1218 ◽  
Author(s):  
Jian Kong ◽  
Dang Sheng Xiong ◽  
Jian Liang Li ◽  
Qun Xing Yuan
Keyword(s):  
Tribological Properties ◽  
Metallic Glasses ◽  
Testing Machine ◽  
Bulk Metallic Glasses ◽  
Physiological Saline ◽  
Dry Sliding ◽  
Distilled Water ◽  
Wear Rates ◽  
Significant Difference ◽  
Fresh Plasma

Metallic biomaterials are used as bone plate, dental implant, wire, electrode, and so on. For the purpose of providing the medical services with higher quality, the frictional and wear behavior of Cu47Ti34Zr11Ni8, (Cu47Ti34Zr11Ni8)99Si, Zr41Ti14Cu12.5Ni10Be22.5 and Zr57Nb5Cu15.4Ni12.6Al10 bulk metallic glasses (BMG) against ceramic ( Si3N4) at room temperature under dry sliding and lubrication of fresh plasma, distilled water, and physiological saline conditions were investigated on a pin-on-disc testing machine. Under identical sliding condition, the steady state friction coefficients of BMGs were observed with values ranging from 0.6 to 0.9 under dry sliding, 0.5 to 0.8 under lubrication with distilled water, 0.5 to 0.7 under lubrication with physiological saline, and 0.3 to 0.7 under lubrication with fresh plasma, respectively. Wear rates of BMGs indicated significant difference that the Cu-based metallic glasses exhibited higher wear resistance than that of Zr-based glasses. The surface tracks indicated the existence of viscous flow and the material transfer occurred from BMG rod to the ceramic disc. Since tribological properties are not intrinsic properties, those results demonstrated the influences of the environment and the characteristics of BMGs on the frictional behaviors, and furthermore indicated that BMGs may be one of the promising biomaterials in the future.

scholarly journals Impact of Mechanical Processes as a Pre-Sulphonitriding Treatment on Tribology Properties of Selected P/M Tool Steels

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3431 ◽  
Author(s):  
Daniel Toboła
Keyword(s):  
Wear Resistance ◽  
Cross Sections ◽  
Tool Steels ◽  
X Ray Diffraction ◽  
Wear Rates ◽  
Different Types ◽  
Pin On Disc ◽  
Slide Burnishing ◽  
Gas Quenching ◽  
Vacuum Furnaces

We have evaluated phase composition changes in the surface layer (SL) and wear resistance of steels investigated after various mechanical processes such as a pre-sulphonitriding treatments. Two various paths of surface modification were employed: Grinding–sulphonitriding (G-SN) and hard turning–slide burnishing–sulphonitriding (T-B-SN). Studies were carried out on Vanadis 8 and Vancron 40 tool steels, which are classified as advanced powder metallurgy (P/M) high-alloyed steels with different types and amounts of carbides. Heat treatment to the final hardness of 64 ± 1 HRC (Vanadis 8) and 62 ± 1 HRC (Vancron 40) was performed in vacuum furnaces with gas quenching. Precipitation of different types such as sulfides, nitrides, and carbides was observed using X-ray diffraction analysis. Tribological properties of SL were evaluated by pin-on-disc experiments. Pins of Al2O3 and 19MnB4 steel were used as counterbodies materials. 3D surface geometrical structure measurements were also performed. Wear tracks and cross-sections of SL were observed using optical and scanning electron microscopy. The three-stage process increases the wear resistance about 37% and 30%, respectively for Vanadis 8 and Vancron 40 (in case of alumina pins), whereas values of wear rates after tests performed against steel pins were very similar for two compared processes for both steels.

Abrasive Wear Resistance of Bulk Metallic Glasses

2000 ◽  
Vol 644 ◽  
Author(s):  
A. Lindsay Greer ◽  
Wha-Nam Myung
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Abrasive Wear Resistance ◽  
Good Resistance ◽  
Fundamental Interest ◽  
Crystalline Materials ◽  
Resistance To Sliding

AbstractThis paper reviews work on the wear of metallic glasses in general, as well as reporting recent results on the abrasive wear of bulk metallic glasses. The distinctive mechanical properties of metallic glasses make their wear resistance of fundamental interest. Metallic glasses, and the partially or fully crystalline materials derived from them, can have very good resistance to sliding and abrasive wear. Standard wear laws are followed, with behaviour similar to that of conventional hardened alloys. The microhardness and abrasive wear resistance are measured for four bulk metallic glasses (based on La, Mg, Pd or Zr). The hardness and wear resistance correlate well with the Young's modulus of the glass.

scholarly journals Plastic Dynamical Model for Bulk Metallic Glasses

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Shaowen Yao ◽  
Zhibo Cheng
Keyword(s):  
Metallic Glasses ◽  
Loading Rate ◽  
Testing Machine ◽  
Compressive Loading ◽  
Shear Bands ◽  
Bulk Metallic Glasses ◽  
Experimental Results ◽  
Dynamical Model ◽  
Compression Tests ◽  
Rate Range

Based on previous experimental results of the plastic dynamic analysis of metallic glasses upon compressive loading, a dynamical model is proposed. This model includes the sliding speed of shear bands in the plastically strained metallic glasses, the shear resistance of shear bands, the internal friction resulting from plastic deformation, and the influences from the testing machine. This model analysis quantitatively predicts that the loading rate can influence the transition of the plastic dynamics in metallic glasses from chaotic (low loading rate range) to stable behavior (high loading rate range), which is consistent with the previous experimental results on the compression tests of a Cu50Zr45Ti5 metallic glass. Moreover, we investigate the existence of a nonconstant periodic solution for plastic dynamical model of bulk metallic glasses by using Manásevich–Mawhin continuation theorem.

Enhanced wear resistance in Zr-based bulk metallic glasses by hydrogen

2013 ◽  
Vol 38 (21) ◽  
pp. 9052-9056 ◽  
Author(s):  
Pingjun Tao ◽  
Yuanzheng Yang ◽  
Xin Chen ◽  
Jian Gao ◽  
Xianchao Chen
Keyword(s):  
Wear Resistance ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses

Design of Fe-Based Bulk Metallic Glasses with Improved Wear Resistance

2018 ◽  
Vol 10 (49) ◽  
pp. 43144-43155 ◽  
Author(s):  
Yi-Cheng Li ◽  
Cheng Zhang ◽  
Wei Xing ◽  
Sheng-Feng Guo ◽  
Lin Liu
Keyword(s):  
Wear Resistance ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses

Estimation of Tribological Behavior of Al2024-TiB2 In Situ Composite Using GMDH and ANN

2014 ◽  
Vol 592-594 ◽  
pp. 1310-1314 ◽  
Author(s):  
R. Keshavamurthy ◽  
G. Ugrasen ◽  
R. Manasa ◽  
Narasimhe Gowda
Keyword(s):  
Tribological Behavior ◽  
Testing Machine ◽  
Group Method ◽  
Matrix Composites ◽  
Wear Rates ◽  
Pin On Disc ◽  
Handling Technique ◽  
Group Method Data Handling ◽  
Artificial Neural Network Ann

This paper reports on prediction and comparison of tribological behavior of Al2024-TiB2 in-situ metal matrix composites using Group Method Data Handling Technique (GMDH) and Artificial Neural Network (ANN). Experiments were carried out using Pin-On-Disc type testing machine as per ASTM standards by varying the loads and sliding velocities. Two responses namely coefficient of friction and wear rates have been considered for each experiment. It was found that, ANN is the most reliable and accurate technique for prediction compared to GMDH.

scholarly journals Evaluation of the Wear Resistance and Corrosion Behavior of Laser Cladding Al/SiC Metal Matrix Composite Coatings on ZE41 Magnesium Alloy

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 639
Author(s):  
Ainhoa Riquelme ◽  
Pilar Rodrigo ◽  
María Dolores Escalera-Rodriguez ◽  
Joaquín Rams
Keyword(s):  
Wear Resistance ◽  
Magnesium Alloy ◽  
Corrosion Behavior ◽  
Laser Cladding ◽  
Wear Behavior ◽  
Composite Coatings ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Wear Rates ◽  
Pin On Disc

Aluminum matrix composites reinforced with SiC particles (SiCp) were deposited on ZE41 magnesium substrates by laser cladding in order to improve their tribological performance. Silicon and titanium were added to the matrix in order to avoid Al-SiC reactivity. The addition of these elements to avoid Al4C3 formation during the laser cladding fabrication was successfully explored in previous research, but the effect of these elements on the wear behavior and the corrosion resistance of these coatings has not been studied. During the fabrication process, there is dilution with the substrate that forms an Al-Mg matrix, which has an influence on the wear and corrosion behavior. Electrochemical polarization and impedance measurements in a 3.5% NaCl solution and the dry sliding conditions on a pin-on-disc tribometer were used to evaluate the different compositions of Al/SiCp coatings on the ZE41 magnesium alloy and uncoated ZE41. All of the composite coatings had lower wear rates than the substrate. However, the coatings showed worse corrosion behavior than the ZE41 substrate, although the addition of Si or Ti improves the corrosion behavior and the wear resistance.

Wear of Carbon Nanofiber Reinforced HDPE Nanocomposites Under Dry Sliding Condition

2012 ◽  
Vol 3 (4) ◽  
Author(s):  
Songbo Xu ◽  
Aydar Akchurin ◽  
Tian Liu ◽  
Weston Wood ◽  
X. W. Tangpong ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Carbon Nanofiber ◽  
Optical Microscope ◽  
High Wear Resistance ◽  
Dry Sliding ◽  
Melt Mixing ◽  
Wear Rates ◽  
Silane Coating ◽  
Pin On Disc ◽  
Bearing Materials

High density polyethylene (HDPE) is widely used as a bearing material in industrial application because of its low friction and high wear resistance properties. Carbon nanofiber (CNF) reinforced HDPE nanocomposites are promising materials for biomedical applications as well, such as being the bearing materials in total joint replacements. The main objective of the present study is to investigate how the wear of HDPE can be altered by the addition of either pristine or silane treated CNFs at different loading levels (0.5 wt. % and 3 wt. %). Two types of silane coating thicknesses, 2.8 nm and 46 nm, were applied on the surfaces of oxidized CNFs to improve the interfacial bonding strength between the CNFs and the matrix. The CNF/HDPE nanocomposites were prepared through melt mixing and hot-pressing. The coefficients of friction (COFs) and wear rates of the neat HDPE and CNF/HDPE nanocomposites were determined using a pin-on-disc tribometer under dry sliding conditions. The microstructures of the worn surfaces of the nanocomposites were characterized using both scanning electron microscope (SEM) and optical microscope to analyze their wear mechanisms. Compared with the neat HDPE, the COF of the nanocomposites were reduced. The nanocomposite reinforced with CNFs coated with the thicker silane coating (46 nm) at 0.5 wt. % loading level was found to yield the highest wear resistance with a wear rate reduction of nearly 68% compared to the neat HDPE.

Wear and Corrosion Resistance of Ni-PTFE-SiO2 Composite Coating Deposited by Jet Electrodeposition

2008 ◽  
Vol 373-374 ◽  
pp. 597-600 ◽  
Author(s):  
Wen Song Lin ◽  
Shi Qiang Qian ◽  
Xu Wen Chen
Keyword(s):  
Wear Resistance ◽  
Composite Coatings ◽  
Anodic Polarization Curve ◽  
Experimental Conditions ◽  
Corrosion Resistant ◽  
Wear And Corrosion ◽  
Jet Electrodeposition ◽  
Pin On Disc ◽  
Jet Velocity ◽  
Wear And Corrosion Resistance

Ni-PTFE/SiO2 composite coatings were prepared by jet electrodeposition. The influences of the particles contents and jet velocity on the properties of the composite coatings were studied. The morphology and microstructure of the coatings were observed on an S-2700 scanning electron microscopy. HX-1 microhardness tester was used to determine the hardness of the coatings. The deposition rate were determined by means of the coatings thickness. The adhesion strength was measured using a scratch tester. Wear resistance tests were performed using a pin-on-disc tribometer with the sample placed horizontally on a turning table. The corrosion behavior of the coatings immersed in 10% H2SO4 solution was analyzed using anodic polarization curve measurement. It was shown that the microhardness of the coatings increased with the increase of SiO2 content, while the addition of PTFE in the coatings resulted in better corrosion-resistant property. Enhancing the jet velocity made the coating compacter. Ni-PTFE-SiO2 composite coatings demonstrated superior wear resistance to Ni-PTFE or Ni-SiO2 coatings under the experimental conditions.

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