THE INFLUENCE OF ION IMPLANTATION ON THE PROPERTIES OF Ti6Al4V TITANIUM ALLOY IN BIOTRIBOLOGICAL SYSTEMS

Tribologia ◽  
2020 ◽  
Vol 292 (4) ◽  
pp. 27-36
Author(s):  
Dariusz Ozimina ◽  
Katarzyna Piotrowska ◽  
Monika Madej ◽  
Arkadiusz Granek
Keyword(s):  
Titanium Alloy ◽  
Ion Implantation ◽  
Tribological Properties ◽  
Wear Mechanism ◽  
Geometrical Structure ◽  
Tribological Tests ◽  
Mechanical And Tribological Properties ◽  
Before And After ◽  
Instrumental Indentation ◽  
Titanium Alloy Ti6al4v

The article is devoted to the assessment of the geometrical structure of the surface as well as the mechanical and tribological properties of the surface layers obtained in the process of ion implantation. The titanium alloy Ti6Al4V used in biotribological systems was implanted with nitrogen and argon ions. Investigations of the geometrical structure of the surface before and after the tribological tests were carried out using confocal microscopy. The hardness of the tested materials was determined by the instrumental indentation method using a Vickers indenter. A nanotribometer was used for tribological tests. The tests were carried out in a reciprocating motion under conditions of technically dry friction and friction with the lubrication of Ringer's solution. SEM scanning microscopy was used to determine the width of the wear pattern and the wear mechanism. The conducted research showed that the hardness of the tested materials increased as a result of ion implantation. The tribological tests showed that the use of ion implantation improves the tribological properties, and the dominant wear mechanism was abrasive wear.

THE TRIBOLOGICAL PROPERTIES OF THE Ti6Al4V ALLOY WITH NITROGEN ION IMPLANTATION

Tribologia ◽  
2019 ◽  
Vol 283 (1) ◽  
pp. 37-47
Author(s):  
Katarzyna PIOTROWSKA ◽  
Paweł BARANOWICZ ◽  
Joanna WYSOKIŃSKA-MISZCZUK ◽  
Monika MADEJ ◽  
Monika SKÓRA
Keyword(s):  
Titanium Alloy ◽  
Ion Implantation ◽  
Tribological Properties ◽  
Contact Angles ◽  
Ti6al4v Alloy ◽  
Surface Geometry ◽  
Tribological Tests ◽  
Ringer’S Solution ◽  
Nitrogen Ions ◽  
Titanium Alloy Ti6al4v

The article presents the analysis of the influence of ion implantation on the properties of titanium alloy used in biotribological systems. The object of the study was the titanium alloy Ti6Al4V implanted with nitrogen ions. Tribological model tests were carried out in combination with a sphere with Al2O3 – a Ti6Al4V alloy disc implanted with N+ ions. Experimental friction tests were carried out on pin-on-disc testers in conditions of technically dry conditions and in conditions of lubrication with the Ringer’s solution. The tests on the TRB tester were carried out in a swinging motion, while on the T-01 tester in a sliding movement. Friction coefficient and wear were determined for all tests. Surface morphology testing and chemical composition analyses were performed using the Jeol JSM-7100F scanning electron microscope, equipped with an EDS microanalyzer. Surface geometry measurements prior to and after tribological tests were performed on a Taylor Hobson’s Talysurf CCI contactless optical profilometer. The optical tensiometer was used to determine the contact angles with demineralized water and Ringer’s solution. The tribological tests of the titanium alloy Ti6Al4V lead to the conclusion that implantation of N+ ions results in better tribological properties of the alloy. The best tribological characteristics were obtained for a titanium alloy implanted with nitrogen ions under technically dry friction conditions. The influence of the tribological system on Ringer’s fluid influenced the reduction of coefficients of friction in the oscillating movement (Tribometer TRB) and sliding motion (Tester T-01M). In the case of a oscillating movement, higher wear of the tested friction pair was observed under friction conditions with the Ringer solution lubrication.

scholarly journals MECHANICAL AND TRIBOLOGICAL PROPERTIES OF OXIDE LAYERS OBTAINED ON Ti-6Al-7Nb ALLOY

Tribologia ◽  
2016 ◽  
Vol 267 (3) ◽  
pp. 9-170
Author(s):  
Krzysztof ANIOŁEK ◽  
Adrian BARYLSKI ◽  
Marian KUPKA ◽  
Michał DWORAK
Keyword(s):  
Titanium Alloy ◽  
Thermal Oxidation ◽  
Tribological Properties ◽  
Sliding Wear ◽  
Treatment Temperature ◽  
Oxide Layers ◽  
Tribological Tests ◽  
Mechanical And Tribological Properties ◽  
Resistance To Sliding ◽  
Alloy Hardness

The research presented in the paper was focused on determining the effects of thermal oxidation parameters on the mechanical and tribological properties of oxide layers formed on Ti-6Al-7Nb titanium alloy for biomedical applications. Titanium alloy was oxidized at 600 and 700°C for 72h. The study found that, at lower temperatures, the oxidized alloy surface was covered by a nonuniform oxide layer. A 100°C increase in the treatment temperature yielded a uniform layer covering the whole surface of the alloy. Hardness measurements showed that thermal oxidation resulted in the formation of oxide layers characterized by a 3-fold higher hardness compared to untreated alloy. Tribological tests showed that thermal oxidation effectively improves the resistance of Ti-6Al-7Nb alloy to sliding wear. Tribological tests demonstrated that an increased oxidation temperature was associated with improved resistance to sliding wear.

Mechanical and tribological properties of carbon and nitrogen consecutive ion implantation into aluminium

2006 ◽  
Vol 201 (3-4) ◽  
pp. 1488-1494 ◽  
Author(s):  
J.C. Szcancoski ◽  
C.E. Foerster ◽  
F.C. Serbena ◽  
T. Fitz ◽  
U. Kreißig ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Tribological Properties ◽  
Carbon And Nitrogen ◽  
Mechanical And Tribological Properties

Carbon ion implantation into aluminium: Mechanical and tribological properties

2006 ◽  
Vol 200 (18-19) ◽  
pp. 5210-5219 ◽  
Author(s):  
C.E. Foerster ◽  
S.L.R. da Silva ◽  
T. Fitz ◽  
T. Dekorsy ◽  
F. Prokert ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Tribological Properties ◽  
Carbon Ion ◽  
Mechanical And Tribological Properties

Mechanical and Tribological Properties of PTFE Composites Filled with POB

2011 ◽  
Vol 194-196 ◽  
pp. 1728-1731 ◽  
Author(s):  
Sha Zhang ◽  
Shi Bo Wang ◽  
Yong Mao
Keyword(s):  
Tribological Properties ◽  
Wear Mechanism ◽  
Indentation Hardness ◽  
Fatigue Wear ◽  
Pressing Method ◽  
Mechanical And Tribological Properties ◽  
Ptfe Composite ◽  
Ball Indentation ◽  
Ptfe Composites ◽  
Scanning Electron

The POB/PTFE composites were prepared by blending-cold pressing-sintering-hot pressing method. Influence of POB content on mechanical and tribological properties of the composites was investigated. Worn surfaces were analyzed by scanning electron microscope (SEM). The results indicated that ball indentation hardness and compressive strength of POB/PTFE increase with increasing POB content in composites. Tensile strength, elongation and impact strength of POB/PTFE decrease with increasing POB content in composites. Friction coefficient of composites increases compared to PTFE. Wear resistance of POB/PTFE composites was improved with filling POB. The POB/PTFE composite incorporating 20% POB has best comprehensive mechanical properties. Wear mechanism of PTFE are abrasive wear. Wear mechanism of POB/PTFE composites mainly are fatigue wear and flaking.

Tribological Performance of Additives for Water-Based Lubricants

2009 ◽  
Author(s):  
A. Tomala ◽  
A. Karpinska ◽  
W. S. M. Werner ◽  
A. V. Olver ◽  
H. Sto¨ri
Keyword(s):  
Tribological Properties ◽  
Tribological Performance ◽  
Metalworking Fluids ◽  
Metal Working ◽  
Corrosion Properties ◽  
Working Fluids ◽  
Tribological Tests ◽  
Water Based ◽  
Before And After ◽  
Friction Behaviour

Fully formulated metalworking fluids have been thoroughly described in literature, but the influence of individual additives on tribological performance of such compositions is still not fully clear. In this study we want to establish the mechanism of how different additives affect tribological properties of the system, and to select the best compounds and concentrations for this purpose. The influence of various individual additives on friction behaviour, anti-wear and anti-corrosion properties of metal working fluids was examined. Additionally, chemical characterisation of the surfaces before and after tribological tests was done. The results show that additives can enhance one property while adversely affecting another. The best results were obtained for triethylamine and 1, 4-buthylene glycol, however mixing both additives gives opposite behaviour.

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