Surface modification of pure titanium by plasma tantalumising

Chen, X H; Wei, Dongbo; Huang, Jian‐Dong; Wang, Xuan

doi:10.1179/1743294412y.0000000107

Cited by 25 publications

(16 citation statements)

References 26 publications

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“…b. It is the existence of the diffusion layer that leads to the supporting and transition function and is in favor of interfacial bonding strength …”

Section: Resultsmentioning

confidence: 99%

Corrosion behavior of tantalum alloying on γ‐TiAl by double‐glow plasma surface metallurgy technique

Liu

Zhang

Wei

et al. 2017

Surface & Interface Analysis

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The Ta coating with corrosion resistance is grown on the γ-TiAl substrate by double-glow plasma surface metallurgy technique, followed by the electrochemical test in 10 wt%, 20 wt% HCl and 10 wt%, 40 wt% H 2 SO 4 solution. The data of nanohardness and elastic modulus are collected by the nanoindention test. The adhesion strength of Ta coating is investigated by means of the scratch test. The study of corrosion resistance is performed using potentiodynamic polarization and electrochemical impedance spectroscopy and measured by SEM and X-ray diffraction. Results highlight that the Ta coating is tightly bonded to the γ-TiAl substrate, consisting of the deposition layer and diffusion layer. Experimental data indicate that the Ta coating presents excellent corrosion resistance, which is confirmed by the high values of polarization resistance (R p ) and the low values of corrosion current density (i corr ). The surface nanohardness of the Ta coating is improved from 3.41 to 7.29 GPa, nearly twice of that of the substrate. The Ta 2 O 5 formed on the coating is able to hold back the penetration of adverse ions inwardly, owing to its dense structure and adhesion effect.

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“…b. It is the existence of the diffusion layer that leads to the supporting and transition function and is in favor of interfacial bonding strength …”

Section: Resultsmentioning

confidence: 99%

Corrosion behavior of tantalum alloying on γ‐TiAl by double‐glow plasma surface metallurgy technique

Liu

Zhang

Wei

et al. 2017

Surface & Interface Analysis

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“…Double glow plasma surface alloying technology is an innovative technology developed based on ion nitriding technology. The advantage of double glow technology is that it can improve the wear resistance, hardness and oxidation resistance of metal or alloy [18][19][20]. An alloy coating prepared by double glow plasma surface alloying technology consists of two part: deposition layer and interdiffusion layer.…”

Section: J Min Metall Sect B-metall 55 (2) B (2019) 227 -234mentioning

confidence: 99%

Microstructure and tribological behavior of W-Mo alloy coating on powder metallurgy gears based on double glow plasma surface alloying technology

Dai

Liang

et al. 2019

J min metall B Metall

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In the present paper, plasma surface alloying was implemented on powder metallurgy gears to improve its wear resistance based on double glow plasma surface metallurgy technology. A W-Mo alloy coating was obtained in the process. The morphology, microstructure and phase composition were investigated by SEM, EDS and XRD. The hardness was examined by Vickers hardness test and nanoindentation test. The tribological behavior of powder metallurgy gears before and after plasma surface alloying was evaluated on a ball-on-disc reciprocating sliding tribometer under dry sliding condition at room temperature. The results indicate that the W-Mo alloy coating is homogeneous without defects, which includes deposition layer and interdiffusion layer. The average microhardness of powder metallurgy gears before and after plasma surface alloying is 145.8 HV 0.1 and 344.4 HV 0.1 , respectively; Nano hardness of deposition layer and interdiffusion layer is 5.76 GPa, 14.35 GPa, respectively. The specific wear rate of W-Mo alloy coating is lower than original PM gears. The wear mechanism of W-Mo alloy coating is slight adhesive wear. The W-Mo alloy coating prepared by double glow plasma surface alloying technology can effectively improve wear resistance of powder metallurgy gears.

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“…On the one hand, DG technique can enhance the wear, corrosion and oxidation resistance of metals or alloys like other surface treatment techniques [14][15][16]. On the other hand, coatings produced by DG technique are well adhering to the substrate and well resistant to top stripping [16,17].…”

Section: Introductionmentioning

confidence: 99%

A study on tribological behavior of double-glow plasma surface alloying W-Mo coating on gear steel

Qiu

Zhang

Wei

et al. 2015

Surface and Coatings Technology

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Surface modification of pure titanium by plasma tantalumising

Cited by 25 publications

References 26 publications

Corrosion behavior of tantalum alloying on γ‐TiAl by double‐glow plasma surface metallurgy technique

Corrosion behavior of tantalum alloying on γ‐TiAl by double‐glow plasma surface metallurgy technique

Microstructure and tribological behavior of W-Mo alloy coating on powder metallurgy gears based on double glow plasma surface alloying technology

A study on tribological behavior of double-glow plasma surface alloying W-Mo coating on gear steel

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