Corrosion and bio-tribological properties of Ti(CN)x hard coating on titanium alloy by the pulsed plasma electrolytic carbonitriding process

2015 ◽  
Vol 82 ◽  
pp. 543-550 ◽  
Author(s):  
Yongkun Qin ◽  
Dangsheng Xiong ◽  
Jianliang Li ◽  
Rajneesh Tyagi
2021 ◽  
pp. 1-14
Author(s):  
Yufu Xu ◽  
Kequn Sun ◽  
Jingyuan Yu ◽  
Yichen Bao ◽  
Yinghui Dong ◽  
...  

Vacuum ◽  
2019 ◽  
Vol 159 ◽  
pp. 228-234 ◽  
Author(s):  
Zhikai Liu ◽  
Qiu Sun ◽  
Ying Song ◽  
Hairui Wang ◽  
Xiangqun Chen ◽  
...  

2016 ◽  
Vol 844 ◽  
pp. 133-140 ◽  
Author(s):  
Mariya R. Komissarova ◽  
Ilia G. Dyakov ◽  
Yurii P. Gladii

Microhardness, friction coefficient, and wear rate of carburized titanium alloy VT 20 are considered. An X-ray diffractometer, a scanning electron microscopy (SEM) used to characterize the phase composition of the modified layer and its surface morphology. A pin-on-disc tribometer was occupied to evaluate wear behavior of the treated titanium alloys. It is established that the friction coefficient decreases from 0.46 (untreated sample) to 0.15 for the sample carburized at 750 °C during 5 min. Therefore, the anode carburizing of titanium alloys results in the reducing of the wear rate by 2 orders.


Tribologia ◽  
2019 ◽  
Vol 283 (1) ◽  
pp. 37-47
Author(s):  
Katarzyna PIOTROWSKA ◽  
Paweł BARANOWICZ ◽  
Joanna WYSOKIŃSKA-MISZCZUK ◽  
Monika MADEJ ◽  
Monika SKÓRA

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.


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