Enhanced surface properties of aluminum by PVD-TiN coating combined with cathodic cage plasma nitriding

Bashir, Muhammad Imran; Shafiq, Muhammad; Naeem, M.; Zaka-ul-Islam, M.; Díaz-Guillén, J.C.; Lopez‐Badillo, C.M.; Zakaullah, M.

doi:10.1016/j.surfcoat.2017.08.015

Cited by 94 publications

(50 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…During the conventional plasma-nitrided (CPN) treatment where the workpiece serves as the cathode of the discharge system, there will be some problems that are difficult to solve, such as the edge effect [12]. The active screen plasma nitriding (ASPN) technology thus came into use [5,[13][14][15][16][17][18][19]. The gas in the furnace is ionized, the surface of metal screen is heated after ion bombardment, and the workpiece reaches nitrided temperature through radiation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

Zhang

Qiu

et al. 2018

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

Plasma nitriding is a widely used technology to enhance the surface performance and extend the service life of alloy parts. The current research mainly focuses on the influences of time, temperature, gas type and pressure parameters on nitriding behavior, while fewer studies have been conducted on the electric potential. This paper mainly reports the effect of the electric potential on nitriding behavior. Test conditions were set using cathodic, anodic and floating potentials in a plasma nitriding furnace. 2Cr13 stainless steel was nitrided at 450°C for 5 h in an NH 3 atmosphere. The experimental results show that the nitriding treatment can be well performed under the different electric potentials, but differences exist in microstructures, morphologies and performance results of the modified layers. The thickness and hardness values of the nitrided layer are ranked as follows: cathodic [ anodic [ floating potential. The anodic nitrided surface has an obvious particle deposition layer composed of nitrides and oxides. Electrochemical and tribological experiments show that the corrosion resistance and wear resistance were significantly improved after a nitriding treatment using the three electric potentials. Moreover, the floating nitriding treatment resulted in the best tribological performance and corrosion resistance.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

Zhang

Qiu

et al. 2018

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

show abstract

“…This study is based on the improvement on surface properties of aluminum using DPF, and significant improvement in hardness is achieved, even in short processing time (just in 20 pulses). According to literature, the nitriding of aluminum is not easily achievable using conventional nitriding techniques due to the formation aluminum oxide (because of high reactivity of aluminum with residual oxygen contents) . The only possibility of the nitriding of aluminum is pre‐sputtering or development of some interlayer, which is quite time consuming, power consuming, and thus expensive .…”

Section: Resultsmentioning

confidence: 99%

“…According to literature, the nitriding of aluminum is not easily achievable using conventional nitriding techniques due to the formation aluminum oxide (because of high reactivity of aluminum with residual oxygen contents) . The only possibility of the nitriding of aluminum is pre‐sputtering or development of some interlayer, which is quite time consuming, power consuming, and thus expensive . In contrast, as we observed here, the DPF device accelerates the ions to the high enough energy, so that it can effectively improve the surface properties of aluminum.…”

Section: Resultsmentioning

confidence: 99%

Enhancement of Mechanical and Structural Traits of Aluminum Using Low Energy Plasma Focus Device

et al. 2019

View full text Add to dashboard Cite

Owing to good machinability, low weight and high specific strength, aluminum is widely used in aerospace and automotive industries. However, low mechanical strength limits its wide spread use in mainstream industries. In this study, nitriding of aluminum was performed with a stream of low energy ions in 1.8 kJ Mather type dense plasma focus (DPF) device. The axial distance from the anode tip was varied in steps to study the effect of the stream length on structural and mechanical properties of the nitrided samples. XRD and Raman analysis confirmed the formation of aluminum nitride (AlN) on the plasma exposed surface. Williamson‐Hall (W−H) study revealed significant improvement in crystallinity and strain of the nitride samples. The most favorable results on mechanical and structural properties of the nitrided samples were obtained at an axial distance of 10 cm. The improved texture and maximum dislocation density for typical AlN (311) is obtained at the optimum distance. The micro‐hardness of the nitrided samples was measured ∼4.5 times higher than the base material.

show abstract

“…With higher hardness, excellent wear resistance and high-temperature stability, the hard coatings have been extensively applied to prolong the service lifetime of engineering products. Early hard coatings are mainly composed of binary nitrides, carbides, and oxides such as TiN [2], TiC [3] and Al 2 O 3 [4]. With the rapid development of material science and coating technology, the multi-component composite coatings and multilayer composite coatings, such as TiCN [5], AlCrN [6], TiAlN [7,8], CrSiCN [9], TiAlSiN [10][11][12] and so on [13], have attracted increasing research, which exhibit much higher surface hardness and more excellent tribological properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zr Target Current on the Mechanical and Tribological Performance of MoS2–Zr Composite Lubricating Coatings

et al. 2020

View full text Add to dashboard Cite

To improve the tribological properties of pure MoS2 coating, the MoS2–Zr composite lubricating coatings were prepared on the WC/TiC/Co carbide surface utilizing radio frequency magnetron sputtering method combining with multiple arc ion plating technology. The effects of different Zr target currents on the surface morphologies, roughness, Zr content, adhesive force, thickness, microhardness and tribological behaviors of the composite coatings were systematically investigated. Results showed that the properties of MoS2 coating can be remarkably enhanced through co-deposition of a certain amount of Zr. As the Zr target current increased, the Zr content, surface roughness, thickness, and micro-hardness gradually increased, while the adhesive force of coatings increased first and then decreased. The friction behaviors and wear modes of the composite coatings both varied obviously with the increase of Zr current. The mechanism was mainly attributed to the different components and mechanical properties of the coatings caused by various Zr current.

show abstract

Enhanced surface properties of aluminum by PVD-TiN coating combined with cathodic cage plasma nitriding

Cited by 94 publications

References 33 publications

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

Enhancement of Mechanical and Structural Traits of Aluminum Using Low Energy Plasma Focus Device

Effect of Zr Target Current on the Mechanical and Tribological Performance of MoS2–Zr Composite Lubricating Coatings

Contact Info

Product

Resources

About