Comparison of tribological properties of nitrided Ti-N modified layer and deposited TiN coatings on TA2 pure titanium

Zhang, Lei; Shao, Minghao; Wang, Zhengwei; Zhang, Zhehao; He, Yongyong; Yan, Jiwen; Lu, Jinpeng; Qiu, Jianxun; Li, Yang

doi:10.1016/j.triboint.2022.107712

Cited by 31 publications

(8 citation statements)

References 70 publications

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“…At a nitriding temperature of 820 °C, The Ti2N is generated at N > 34 at%. when N > 12 at%, a mixed phase of Ti 2 N and α(N) occurs, and when N < 12 at%, N is completely dissolved in α-Ti [32]. In the ion nitriding process, due to the high N content of the surface layer of titanium alloy, the products of nitriding are mainly Ti 2 N, and formed the nitrided layer as shown in figure 4.…”

Section: Surface Roughness and Microstructuresmentioning

confidence: 99%

Improving the wear performance of TC6 Titanium alloy by ion nitriding treatment

Liu,

Li,

et al. 2024

Eng. Res. Express

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TC6 titanium alloy, also known as Ti-6Al-1.5Cr-2.5Mo, is one of the most widely used titanium alloys in the aerospace industry due to its high specific strength, corrosion resistance and excellent mechanical properties. However, its poor wear resistance limits its application in some situations, such as aircraft actuators. To improve its wear resistance, this paper performs ion nitriding treatment on TC6 titanium alloy for aircraft cylinder and studies its wear performance. The ion nitriding test is conducted for 16 h at 820°C using a bell-type titanium alloy ion nitriding furnace. The nitrided specimen is divided into three parts: nitrided layer, diffusion layer, and substrate layer. The nitrided layer was 4.11 μm thick and consisted of TiN and Ti2N phases. The diffusion layer was 13.69 μm thick and mainly composed of a gap solid solution formed by N element solid dissolved in α-Ti. After nitriding, the surface hardness of the specimen increased to 1105.2 HV, which is 2.37 times higher than that of the matrix. The hardness-affected layer is about 200 μm thick. The wear rate is reduced by 99.78 % compared with that of the matrix, indicating that ionic nitriding greatly improves the wear resistance of TC6 titanium alloy. The wear mechanism of the nitriding specimen differs from that of the matrix, mainly due to abrasive wear, while the wear mechanism of the matrix is a combination of adhesive wear and abrasive wear.

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Section: Surface Roughness and Microstructuresmentioning

confidence: 99%

Improving the wear performance of TC6 Titanium alloy by ion nitriding treatment

Liu,

Li,

et al. 2024

Eng. Res. Express

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“…Strong tribological interactions, such as air or lubricant, occur during sliding wear operations. These interactions would produce shear stresses and high temperatures locally in the contact zones [22]. Therefore, a thin oxide layer within the wear track initiates antiwear properties.…”

Section: Gbmentioning

confidence: 99%

“…Literature suggests that surface treatments and coatings on aluminum alloy surfaces produce compressive residual stresses, eventually preventing crack initiation and growth [17][18][19][20][21][22][23][24][25][26][27]. Coating thickness on the substrate affected adhesion, density, and performance.…”

Section: Introductionmentioning

confidence: 99%

Effect of coating thickness on microstructural and mechanical properties of titanium coated aluminum alloy deposited by vacuum arc melting method

Suresh,

Zagulyaev,

Shlyarov

et al. 2023

Phys. Scr.

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This study aims to investigate the effects of titanium coatings on aluminum alloy's tribological and fatigue properties. In this investigation, aluminum alloy samples were coated with 1 µm, 3 µm, and 5 µm using the vacuum arc melting method. The morphological and mechanical features of the samples were characterized with SEM, microhardness, contact nanoprofilometer, and calotest methods. The raising of coating thickness by varying the parameters eventually provides strong adhesion properties and enhances the surface hardness of the samples. Further, hard sub-surface layers on the aluminum alloy substrate increased fatigue resistance. The superior mechanical properties, such as microhardness, lower surface roughness, and good bonding at the interface, are critical factors in increasing the fatigue and wear resistance of the aluminum alloy. No traces of defects, such as microcracks and porosity, were found on the coated samples. The microhardness of the coated sample increased by 3.69 times that of the AK5M2 aluminum alloy. The fatigue lifetime of the 5 µm coated samples was increased by 21%. The wear resistance of titanium-coated samples showed better wear resistance against the steel counter body than other coated and uncoated samples.

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“…Different surface treatment techniques of titanium alloys can effectively provide these surfaces with more desired properties and functionalities for exceptional applications [9][10][11][12][13][14][15][16]. Electrochemical anodic oxidation technology has the advantages of rapid preparation, diversified surface morphology, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Nitrided Layer of Ti6Al4V Titanium Alloy by Hollow Cathodic Plasma Source Nitriding

et al. 2023

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Ti6Al4V titanium alloys, with high specific strength and good biological compatibility with the human body, are ideal materials for medical surgical implants. However, Ti6Al4V titanium alloys are prone to corrosion in the human environment, which affects the service life of implants and harms human health. In this work, hollow cathode plasm source nitriding (HCPSN) was used to generate nitrided layers on the surfaces of Ti6Al4V titanium alloys to improve their corrosion resistance. Ti6Al4V titanium alloys were nitrided in NH3 at 510 °C for 0, 1, 2, and 4 h. The microstructure and phase composition of the Ti-N nitriding layer was characterized by high-resolution transmission electron microscopy, atomic force microscopy, scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. This modified layer was identified to be composed of TiN, Ti2N, and α-Ti (N) phase. To study the corrosion properties of different phases, the nitriding 4 h samples were mechanically ground and polished to obtain the various surfaces of Ti2N and α-Ti (N) phases. The potentiodynamic polarization and electrochemical impedance measurements were conducted in Hank’s solution to characterize the corrosion resistance of Ti-N nitriding layers in the human environment. The relationship between corrosion resistance and the microstructure of the Ti-N nitriding layer was discussed. The new Ti-N nitriding layer that can improve corrosion resistance provides a broader prospect for applying Ti6Al4V titanium alloy in the medical field.

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Comparison of tribological properties of nitrided Ti-N modified layer and deposited TiN coatings on TA2 pure titanium

Cited by 31 publications

References 70 publications

Improving the wear performance of TC6 Titanium alloy by ion nitriding treatment

Improving the wear performance of TC6 Titanium alloy by ion nitriding treatment

Effect of coating thickness on microstructural and mechanical properties of titanium coated aluminum alloy deposited by vacuum arc melting method

Corrosion Behavior of Nitrided Layer of Ti6Al4V Titanium Alloy by Hollow Cathodic Plasma Source Nitriding

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