Dry Sliding Wear Behaviour of Plasma Sprayed Flyash-Al2O3 and Flyash-SiC Coatings on the Al6061 Aluminum Alloy

Naveena, B.E.; Keshavamurthy, R.; Sekhar, N. C.

doi:10.1007/s12633-018-9978-x

Cited by 15 publications

(2 citation statements)

References 15 publications

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“…In this class, atmospheric plasma spraying (APS) is the widely used technique, where the principle of super heating of inert gas (argon, nitrogen etc.) by electric DC arc energy and is added to powdered metallic/non-metallic feedstock then accelerated towards the substrate to form a "splat", a semi molten or molten deposit which solidifies on cooling [4][5][6][7]. Lanthanum Zirconate (La2Zr2O7) is a more attractive and most preferred feedstock material as thermal barrier coating for high temperature applications.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Process Parameters for Plasma Sprayed Lanthanum Zirconate TBCs on Nickel Based Superalloy

Keshavamurthy

Naveena

Ramesh

et al. 2021

Advances in Science and Technology

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Thermal Barrier Coating are highly advanced material systems usually applied to metallic surfaces, such as gas turbine or aero-engine parts, operating at elevated temperatures. They have ceramic and metallic multilayers which have been widely used in the aeroturbine engines to increase the life of metallic components and turbine efficiency. Many different types of coatings are used to protect variety of engineering materials from wear, corrosion and erosion. Of all these, TBC’s play a vital role in providing thermal insulation and protect the material from high temperature environment. In this paper Lanthanum Zirconate (La2Zr2O7) is used as a coating material which is phase-stable to its melting point, Lanthanum Zirconate is a promising material which exhibit lower thermal conductivity and higher thermal stability compared to other TBC system. High quality Lanthanum Zirconate based TBC is developed by plasma spray technique on superalloys. In the present investigation porosity, microstructure, hardness and bond strength of the developed TBC’s were characterized and significant parameters of plasma spray process were identified.

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Section: Introductionmentioning

confidence: 99%

Optimization of Process Parameters for Plasma Sprayed Lanthanum Zirconate TBCs on Nickel Based Superalloy

Keshavamurthy

Naveena

Ramesh

et al. 2021

Advances in Science and Technology

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“…It can be accomplished using various techniques includes varying microstructural responses based on the process parameters of the equipment. The techniques are following such as electroplating [2], physical vapour deposition [3], chemical vapour deposition [4], plasma spraying [5,6], and laser surface alloying [7], etc. which increases the processing cost and also it require expensive post-processing and curing process.…”

Section: Introductionmentioning

confidence: 99%

Process Optimisation and Tribological Behaviour Studies on Surface Modified Al 6061-T6 Alloy Deposited with WS2 Solid Lubricant Layer Through Electrical Discharge Approach

2021

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In this present work, an attempt has been made to deposit the WS 2 layer on the Al 6061-T6 alloy surface through the electrical discharge deposition (EDD) technique. Specified deposition parameters, namely powder concentration (C p ), pulse-on time (P on ), and gap voltage (V g ) with various levels considered during the EDD process. The experimentation was performed for analysing the results of deposition parameters on material deposition rate (MDR), surface roughness (SR), microhardness (MH), layer thickness (LT), and surface characteristics of the WS 2 layer were examined. The results addressed the various intermetallic compounds formed on the deposited surface. A multi-objective optimisation using Box-Behnken design of response surface methodology was utilised to conduct the deposition process. To predict and optimise the appropriate MDR, SR, MH, and LT, the quadratic model was developed using regression analysis and analysis of variance. Based on the developed model, the interaction effects of deposition parameters on the EDD process were explored. The optimal depositing parameters are determined by maximising the MDR and MH and minimising the SR and LT. The validation test results confirm that experimental data are good in agreement with the predicted results, and hence, the model is feasible to predict the responses adequately. The tribological study was carried out for the optimised condition, and surface characteristics on the worn-out surface were analysed. When compared to the base material, the obtained results show a lower coefficient of friction and specific wear rate.

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Effect of Heat Treatment on Mechanical Behavior of Al7075-Based Hybrid Composites

Matti¹,

Shivakumar²,

Holi³

et al. 2022

Lecture Notes in Mechanical Engineering

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Dry Sliding Wear Behaviour of Plasma Sprayed Flyash-Al2O3 and Flyash-SiC Coatings on the Al6061 Aluminum Alloy

Cited by 15 publications

References 15 publications

Optimization of Process Parameters for Plasma Sprayed Lanthanum Zirconate TBCs on Nickel Based Superalloy

Optimization of Process Parameters for Plasma Sprayed Lanthanum Zirconate TBCs on Nickel Based Superalloy

Process Optimisation and Tribological Behaviour Studies on Surface Modified Al 6061-T6 Alloy Deposited with WS2 Solid Lubricant Layer Through Electrical Discharge Approach

Effect of Heat Treatment on Mechanical Behavior of Al7075-Based Hybrid Composites

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