Enhancing wear resistance of TiN coating by gradient bias voltage and arc-enhanced glow discharge

Author(s):  
Y.H. Wang ◽  
F. Guo ◽  
H. Ren ◽  
S.Y. Hu ◽  
Y.J. Chen ◽  
...  
1993 ◽  
Vol 8 (5) ◽  
pp. 1109-1115 ◽  
Author(s):  
Yuji Chiba ◽  
Toshio Omura ◽  
Hiroshi Ichimura

Wear resistance of arc ion-plated chromium nitride films has been studied. It has been found that texture and phases composing the films depend much on bias voltage and nitrogen gas pressure at the deposition. A phase diagram was constructed as a function of these two parameters, which indicated that three categories exist: CrN single, CrN and Cr2N dual, and CrN and Cr dual phased regions, respectively. Results of Falex No. 2 test showed that the wear resistance of CrN single phased films is superior to others, especially when (220) preferred orientation is developed. Since hardness and surface morphology do not differ much between these films, a high toughness of CrN single phased film is considered to make a difference by suppressing abrasion wear.


Coatings ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 555 ◽  
Author(s):  
Chin-Chiuan Kuo ◽  
Yu-Tse Lin ◽  
Adeline Chan ◽  
Jing-Tang Chang

Titanium nitride (TiN) coating has been used in various application as it gives excellent performance in many aspects. It has been proven to prolong machining tool life since the mid-1960s. Industrial deposition processes of TiN, including magnetron sputtering, arc ion plating, and chemical vapor depositions, have their individual advantages and limitations. Due to the rising demands of the dry machining technique, the massive amount of heat generated from the friction of cutting tools against the surface of a work piece has become the main issue to overcome. Oxidation of TiN, which occurs around 400 °C, puts a limit on the applications of the coatings. Comparing TiN tool coatings deposited by arc evaporation, the novel high-power impulse magnetron sputtering (HiPIMS) technology provides smoother film surface, denser structure and subsequent corrosion resistance. Therefore, this research aims to investigate the wear behavior of TiN thin film deposited by HiPIMS at high temperature. The influences of the coating properties on the wear resistance of coatings at high temperature are also investigated. The results show that the HiPIMS technique enables a denser epitaxial-grown TiN coating with higher surface hardness and adhesion in contrast with TiN coating deposited using direct current (DC) magnetron sputtering techniques, which provides a higher wear resistance.


2019 ◽  
Vol 813 ◽  
pp. 1-6 ◽  
Author(s):  
Mohamed Hussein ◽  
Akeem Adesina ◽  
Madhan Kumar ◽  
Ahmad A. Sorour ◽  
Nasser Al Aqeeli

Ti alloys have been widely used for biomedical applications.The generated wear debris due to its low wear resistance lead to inflammations and reduce the lifetime of the implant. So, the coating has been used to improve corrosion and wear resistance. In the present work, we report the assessments of TiN coating deposited by CA-PVD on Ti6Al4V alloy for dental applications. The deposited coating was characterized by XRD and SEM. Mechanical properties were assessed using micorindentation. The in vitro corrosion properties was investigated using PDP and EIS in artificial saliva. The wear rate was characterized using the linear reciprocating tribometer. The results showed that a TiN layer with 1.8 µm thickness was deposited with a hardness of 24.9±8.123 GPa and a Modulus of elasticity of 244.7±14.8 GPa. The corrosion study revealed enhancement in the corrosion performance of the coated sample in artificial saliva. The wear rate of the coated samples was also enhanced for the coated sample. The improved surface hardness, corrosion and wear characteristics of the TiN coating suggests that TiN coating would be a potential candidate for dental applications.


2006 ◽  
Vol 114 ◽  
pp. 63-68 ◽  
Author(s):  
Halina Garbacz ◽  
Wacław Pachla ◽  
Tadeusz Wierzchoń ◽  
Krzysztof Jan Kurzydlowski

The material examined was commercially pure titanium with intermetallic Ti-Al layers produced by magnetron sputtering followed by glow discharge assisted treatment. This material was subjected to hydrostatic extrusion at room temperature. This resulted in substantial grain size refinement in the titanium accompanied by significant property improvement. The intermetallic Ti- Al layers reduced the pressure required during hydroextrusion and also increased the microhardness and frictional wear resistance of the material.


2012 ◽  
Vol 531-532 ◽  
pp. 342-345 ◽  
Author(s):  
Zhi Ming Yu ◽  
Jia Xiu Hu ◽  
Yun Song Niu ◽  
Jie Wei ◽  
Ying Yang

Multilayered TiN coating was successfully prepared by hollow cathode discharge method. By introduction of the multilayered microstructure, the columnar epitaxial growth of TiN grains was obviously suppressed. The hardness, adhesion performance and wear resistance of the multilayered TiN coating were compared with those of the ordinary TiN coating. The wear resistance of the multilayered TiN coating is much better than that of the ordinary TiN coating. It is due to the multilayered microstructure of the coating that pileups the dislocations and also inhibits the bulk-flaking behavior for the multilayered TiN coating. The morphology analysis of cross section shows that the wear mechanism of the multilayered TiN coating is the micro-area detachment. Moreover, the adhesion of the TiN coating to the substrate is greatly enhanced by the microstructure optimization of the coating.


2010 ◽  
Vol 297-301 ◽  
pp. 1053-1058 ◽  
Author(s):  
Małgorzata Grądzka-Dahlke

The development of arthroplastics places high demands on the materials used for load-bearing elements of orthopedic implants. The most common of implant materials are titanium and cobalt alloys due to their excellent mechanical properties and biocompatibility. Titanium alloys have desirable properties, such as relatively low modulus, good fatigue strength, formability, machinability, superior corrosion resistance and so are frequently used for long-term implants. However, poor wear resistance limits their application for tribological systems of artificial joints. Research on improvement of titanium alloys tribological properties have been undertaken, mainly by using thin coatings. The TiN-layers are reported to be most promising in biomedical applications such. Many authors stress that application of TiN layer improve wear resistance of titanium implant alloys. Presented work is focused on comparison of effect of TiN coating on properties of TiAlV and CoCrMo implant alloys. The structure, microhardness, corrosion resistance as well as tribological properties were analysed. The research did not confirmed the good properties of titanium alloy with TiN coating. The results show that matrix metal hardness definitely affects the efficiency of TiN layers.


Sign in / Sign up

Export Citation Format

Share Document