Electro spark coating of AlCoCrFeNi high entropy alloy on AISI410 stainless steel

Chandrakant,; Reddy, N.S.; Panigrahi, Bharat B.

doi:10.1016/j.matlet.2021.130580

Cited by 12 publications

(2 citation statements)

References 15 publications

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“…The results show that the enhanced hardness at higher than 40 GPa (TiHfZrVNb(N)) can effectively reduce the wear factor (0.039 × 10 −5 mm 3 H −1 mm −1 ). Chandrakant et al deposited an AlCoCrFeNi coating on AIAI410 stainless steel substrate by electro spark deposition and studied its mechanical properties and wear resistance [44]. The results show a threefold increase in the microhardness was achieved after coating, and the coating exhibited excellent wear resistance compared to steel.…”

Section: Other Techniques and Brief Summary Of Preparation Technologiesmentioning

confidence: 99%

Tribological Behavior of High Entropy Alloy Coatings: A Review

et al. 2022

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As engineering equipment is applied in a harsh environment with a heavy load, cyclic stress, and a wide range of temperatures, the reliability of the equipment becomes a challenge, especially when wear contact is involved. Hence, the design and exploitation of an advanced alloy surface may hold the key to control and minimize friction and wear in the transmission system for safety-critical applications. High entropy alloys (HEAs) or multi-component alloys have been proved to have outstanding mechanical properties, corrosion resistance, and high-temperature oxidation resistance with potential use as wear resistance and friction reduction coatings. In this paper, the properties and development status of HEAs coating systems for tribological applications were reviewed to gain a better understanding of their advantages and limitations obtained by different preparation methods. Specifically, focus was paid to magnetron sputtering, laser cladding, and thermal spraying since these three deposition methods were more widely used in wear-resistant and friction-reducing coatings. Building upon this, the correlation between composition, mechanical properties, and friction as well as wear characteristics of these coatings are summarized. Finally, the key problems to be solved to move the field forward and the future trend of tribology application for HEA coatings are outlined.

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Section: Other Techniques and Brief Summary Of Preparation Technologiesmentioning

confidence: 99%

Tribological Behavior of High Entropy Alloy Coatings: A Review

et al. 2022

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“…Radek et al 4 found that the WC-Co electro spark deposited coating after laser treatment can be used as a wear resistant and protective coating for steel substrates. Reddy et al 5 found that Al-Co-Cr-Fe-Ni high entropy alloy (HEA) electro spark deposited on stainless steel has good wear resistance. Kuptsov et al 6 the nanocomposite WC/a-c coatings prepared by PVD and ESD under vacuum conditions have good bond strength.…”

Section: Introductionmentioning

confidence: 99%

Effect of discharge parameters on electric-spark deposition material transfer

Hou,

Han,

Zheng

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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In order to study the influence of discharge parameters on the electric spark deposition process, an automatic electric spark deposition device is built by a closed-loop control system of discharge parameters. An automatic electric spark deposition test is carried out at different control voltages. By analyzing the effective discharge waveform parameters, transfer efficiency, deposition efficiency, contact force in the deposition process, surface morphology, and cross-sectional morphology of the deposition layer under different control voltages, etc. Analysis of the results shows that changing the control voltage has a direct effect on the number of discharge types in the deposition process. With the appropriate control voltage, better transfer efficiency and deposition quality can be achieved. Contact discharge has a greater effect on material transfer efficiency than other types of discharge. The transfer of the electrode to the material on the workpiece is mainly achieved by contact discharge. Automatic control of discharge parameters can also be applied to automatic control of discharge pulse types.

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