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Nicolaie Markocsan

Professor

Staff member at Division of Subtractive and Additive Manufacturing.

Conducts research in engineering and technology, production technology.


Publications


A Comparative Study of Corrosion Resistance for HVAF-Sprayed Fe- and Co-Based Coatings

Published

A Comparative Study of Corrosion Resistance for HVAF-Sprayed Fe- and Co-Based Coatings

There is an increasing demand to replace Co-based coatings with cheap and environmentally friendly Fe-based coatings in corrosive environments. The...

A comparative study on Ni-based coatings prepared by HVAF, HVOF, and APS methods for corrosion protection applications

Published

A comparative study on Ni-based coatings prepared by HVAF, HVOF, and APS methods for corrosion protection applications

Selection of the thermal spray process is the most important step towards a proper coating solution for a given application as important coating...

A synchrotron X-ray diffraction deconvolution method for the measurement of residual stress in thermal barrier coatings as a function of depth

Published

A synchrotron X-ray diffraction deconvolution method for the measurement of residual stress in thermal barrier coatings as a function of depth

The average residual stress distribution as a function of depth in an air plasma-sprayed yttria stabilized zirconia top coat used in thermal barrie...

Axial Suspension Plasma Spraying : An ultimate technique to tailor Ti6Al4V surface with HAp for orthopaedic applications

Published

Axial Suspension Plasma Spraying : An ultimate technique to tailor Ti6Al4V surface with HAp for orthopaedic applications

Dissolution of atmospheric plasma sprayed (APS) hydroxyapatite (HAp) coatings on Ti-6Al-4 V medical implants have always been a challenge to overco...

Beläggningar för ökad prestanda i förbränningsmotorer

Published

Beläggningar för ökad prestanda i förbränningsmotorer

Bi-layer thermal spray coatings : A critical approach to extend the service-life of metallic components

Published

Bi-layer thermal spray coatings : A critical approach to extend the service-life of metallic components

Characterization and understanding of residual stresses in a NiCoCrAlY bond coat for thermal barrier coating application

Published

Characterization and understanding of residual stresses in a NiCoCrAlY bond coat for thermal barrier coating application

The residual stresses in a NiCoCrAlY bond coat deposited on a Ni-base superalloy substrate after oxidation at 1150 °C were studied by X-ray...

Characterization of Cold Lap Defects in Tandem Arc MAG Welding

Published

Characterization of Cold Lap Defects in Tandem Arc MAG Welding

Characterization of cold lap defects in tandem arc MAG welding

Published

Characterization of cold lap defects in tandem arc MAG welding

The objective of this investigation was to classify and characterize the small lack of fusion defects, called cold lap, located at the weld toe....

Characterization of cold lap defects in tandem arc MAG welding

Published

Characterization of cold lap defects in tandem arc MAG welding

The objective of this investigation was to classify and characterize the small lack of fusion defects, called cold lap, located at the weld toe....

Characterization of Microstructure and Thermal Properties of YSZ Coatings Obtained by Axial Suspension Plasma Spraying (ASPS)

Published

Characterization of Microstructure and Thermal Properties of YSZ Coatings Obtained by Axial Suspension Plasma Spraying (ASPS)

The paper aims at demonstrating various microstructures which can be obtained using the suspension spraying technique and their respective...

Characterization of Thermal Barrier Coatings Produced by Various Thermal Spray Techniques Using Solid Powder, Suspension, and Solution Precursor Feedstock Material

Published

Characterization of Thermal Barrier Coatings Produced by Various Thermal Spray Techniques Using Solid Powder, Suspension, and Solution Precursor Feedstock Material

Use of a liquid feedstock in thermal spraying (an alternative to the conventional solid powder feedstock) is receiving an increasing level of...

Characterization of thermo-mechanical properties for thermal sprayed NiCoCrAlY coatings

Published

Characterization of thermo-mechanical properties for thermal sprayed NiCoCrAlY coatings

Chlorine-induced high temperature corrosion of HVAF-sprayed Ni-based alumina and chromia forming coatings

Published

Chlorine-induced high temperature corrosion of HVAF-sprayed Ni-based alumina and chromia forming coatings

Chlorine-induced corrosion of HVAF-sprayed Ni21Cr and Ni5Al coatings was investigated in 5 vol.% O2 + 500vppm HCl + N2 with and without KCl at 600 ...

Cold laps - micro-lack of fusion defects in steel arc welds : a review

Published

Cold laps - micro-lack of fusion defects in steel arc welds : a review

Comparative study of suspension plasma sprayed and suspension high velocity oxy-fuel sprayed YSZ thermal barrier coatings

Published

Comparative study of suspension plasma sprayed and suspension high velocity oxy-fuel sprayed YSZ thermal barrier coatings

Suspension Thermal Spraying is a relatively new thermal spaying technique to produce advanced thermal barrier coatings. This technique enables the...

Comparative Study on the Properties of INCONEL 718 Coatings Deposited by High Velocity Thermal Spray Methods

Published

Comparative Study on the Properties of INCONEL 718 Coatings Deposited by High Velocity Thermal Spray Methods

Comparison of microstructure in Ni-Al single splats and millimeter sized droplets

Published

Comparison of microstructure in Ni-Al single splats and millimeter sized droplets

Corrosion behavior of high-chromium Fe-based coatings produced by HVAF thermal spraying technique

Published

Corrosion behavior of high-chromium Fe-based coatings produced by HVAF thermal spraying technique

Fe-based coatings with different Cr content were prepared by high-velocity air fuel (HVAF) spraying on the surface of both carbon steel and stainle...

Corrosion behavior of HVAF- and HVOF-sprayed high-chromium Fe-based coatings

Published

Corrosion behavior of HVAF- and HVOF-sprayed high-chromium Fe-based coatings

Fe-based coatings with three particular elemental compositions and two different powder particle size were prepared by high-velocity air fuel (HVAF...

Corrosion behavior of HVAF-sprayed Bi-layer coatings : Effect of intermediate layer's microstructure and chemical composition

Published

Corrosion behavior of HVAF-sprayed Bi-layer coatings : Effect of intermediate layer's microstructure and chemical composition

Corrosion performance of bi-layer Ni/Cr2C3–NiCr HVAF thermal spray coating

Published

Corrosion performance of bi-layer Ni/Cr2C3–NiCr HVAF thermal spray coating

The corrosion behavior of three HVAF thermal spray coating systems (A: single-layer Ni, B: single-layer Cr2C3–NiCr coatings, and C: bi-layer...

Design of Next Generation Thermal Barrier Coatings- Experiments and Modelling

Published

Design of Next Generation Thermal Barrier Coatings- Experiments and Modelling

Thermal barrier coating (TBC) systems have been used in the gas turbine industry since the 1980's. The future needs of both the air and land based...

Determination of local residual stress in an air plasma spray thermal barrier coating (APS-TBC) by microscale ring coring using a picosecond laser

Published

Determination of local residual stress in an air plasma spray thermal barrier coating (APS-TBC) by microscale ring coring using a picosecond laser

A picosecond laser for incremental annular trench cutting is combined with digital image correlation (DIC) to extend the incremental ring-core meth...

Development of bondcoat layer for long lifetime suspension plasma sprayed thermal barrier coatings

Published

Development of bondcoat layer for long lifetime suspension plasma sprayed thermal barrier coatings

Development of thermal barrier coatings (TBCs) manufactured by suspension plasma spraying (SPS) is of high commercial interest as SPS has been show...

Development of bondcoats for high lifetime suspension plasma sprayed thermal barrier coatings

Published

Development of bondcoats for high lifetime suspension plasma sprayed thermal barrier coatings

Fabrication of thermal barrier coatings (TBCs) by suspension plasma spraying (SPS) seems to be a promising alternative for the industry as SPS TBCs...

Development of plasma sprayed Ni/YSZ anodes for metal supported solidoxide fuel cells

Published

Development of plasma sprayed Ni/YSZ anodes for metal supported solidoxide fuel cells

Solid oxide fuel cells (SOFCs) offer a promising technique for producing electricity by clean energy conversionthrough an electrochemical reaction ...

Duplex thermal spray coatings : a critical approach to extend the service-life of metallic components

Published

Duplex thermal spray coatings : a critical approach to extend the service-life of metallic components

Corrosion is a common problem for many metallic components used today in a wide range of industries. Thermal spraying is a promising approach to...

Effect of bondcoat and substrate chemistry on oxide growth and lifetime in suspension plasma sprayed thermal barrier coatings

Published

Effect of bondcoat and substrate chemistry on oxide growth and lifetime in suspension plasma sprayed thermal barrier coatings

Effect of Heat Treatment on Low Conductive Thermal Barrier Coatings

Published

Effect of Heat Treatment on Low Conductive Thermal Barrier Coatings

Effect of SiO2 Dispersion on Chlorine-Induced High-Temperature Corrosion of High-Velocity Air-Fuel Sprayed NiCrMo Coating

Published

Effect of SiO2 Dispersion on Chlorine-Induced High-Temperature Corrosion of High-Velocity Air-Fuel Sprayed NiCrMo Coating

NiCrMo coatings with and without dispersed SiO2 were deposited using high-velocity air-fuel technique. Thermogravimetric experiments were conducted...

Effect of thermal aging on microstructure and functional properties of zirconia-base thermal barrier coatings

Published

Effect of thermal aging on microstructure and functional properties of zirconia-base thermal barrier coatings

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Effect of water vapor on the oxidation behavior of HVAF-sprayed NiCr and NiCrAlY coatings

Published

Effect of water vapor on the oxidation behavior of HVAF-sprayed NiCr and NiCrAlY coatings

Isothermal oxidation behavior of NiCr and NiCrAlY coatings deposited onto low alloy 16Mo3 steel by high-velocity air fuel (HVAF) process was...

Effects of surface finish on the initial oxidation of HVAF-sprayed NiCoCrAlY coatings

Published

Effects of surface finish on the initial oxidation of HVAF-sprayed NiCoCrAlY coatings

Oxide scale formed on HVAF-sprayed NiCoCrAlY coatings and the effect of surface treatment were investigated by a multi-approach study combining...

Electrochemical Behavior of Bilayer Thermal-Spray Coatings in Low-Temperature Corrosion Protection

Published

Electrochemical Behavior of Bilayer Thermal-Spray Coatings in Low-Temperature Corrosion Protection

Cr3C2-NiCr coatings are greatly used to protect critical components in corrosive environments and to extend their lifetime and/or improve functiona...

Electrochemical performance of plasma sprayed metal supported planar solid oxide fuel cells

Published

Electrochemical performance of plasma sprayed metal supported planar solid oxide fuel cells

High production cost is one of the major barriers to widespread commercialization of solid oxide fuel cells (SOFCs). Thermal spray techniques are a...

Electrochemical Performance of Plasma Sprayed Metal Supported Planar Solid Oxide Fuel Cells

Published

Electrochemical Performance of Plasma Sprayed Metal Supported Planar Solid Oxide Fuel Cells

High production cost is one of the major barriers to widespread commercialization of solid oxide fuel cells (SOFCs). Thermal spraytechniques are a...

Engineered architectures of gadolinium zirconate based thermal barrier coatings subjected to hot corrosion test

Published

Engineered architectures of gadolinium zirconate based thermal barrier coatings subjected to hot corrosion test

Abstract Gadolinium zirconate (GZ) is considered as a promising top coat candidate for high temperature TBC applications. Suspension plasma spray h...

Engineered thermal barrier coatings deposited by suspension plasma spray

Published

Engineered thermal barrier coatings deposited by suspension plasma spray

Yttria stabilized zirconia (YSZ) is susceptible to CMAS (Calcium Magnesium Alumino Silicates) attack at high temperatures (>1200 °C) which limits...

Erosion Behavior of Gadolinium Zirconate/YSZ Multi-Layered Thermal Barrier Coatings Deposited by Suspension Plasma Spray

Published

Erosion Behavior of Gadolinium Zirconate/YSZ Multi-Layered Thermal Barrier Coatings Deposited by Suspension Plasma Spray

Yttria stabilized zirconia (8YSZ) is the standard ceramic material for thermal barrier coating (TBC)applications. However, above 1200º C, it has...

Erosion Performance of Gadolinium Zirconate-Based Thermal Barrier Coatings Processed by Suspension Plasma Spray

Published

Erosion Performance of Gadolinium Zirconate-Based Thermal Barrier Coatings Processed by Suspension Plasma Spray

7-8 wt.% Yttria-stabilized zirconia (YSZ) is the standard thermal barrier coating (TBC) material used by the gas turbines industry due to its...

Erratum to The 2016 Thermal Spray Roadmap

Published

Erratum to The 2016 Thermal Spray Roadmap

Evaluation of the Lifetime and Thermal Conductivity of Dysprosia-Stabilized Thermal Barrier Coating Systems

Published

Evaluation of the Lifetime and Thermal Conductivity of Dysprosia-Stabilized Thermal Barrier Coating Systems

The aim of this study was the further development of dysprosia stabilised zirconia coatings for gas turbine applications. The target for these...

Experimental visualization of microstructure evolution during suspension plasma spraying of thermal barrier coatings

Published

Experimental visualization of microstructure evolution during suspension plasma spraying of thermal barrier coatings

This paper investigates the evolution of microstructure of thermal barrier coatings (TBCs) produced by suspension plasma spraying (SPS) through a...

Factors influencing fusion of spatter to the base metal during tandem GMAW

Published

Factors influencing fusion of spatter to the base metal during tandem GMAW

Tandem gas metal arc welding (tandem GMAW) is, as a high productivity welding method of manufacturing process, utilized broadly in modern Swedish...

Factors influencing fusion on spatter to the base metal during tandem GMAW welding

Published

Factors influencing fusion on spatter to the base metal during tandem GMAW welding

Failure analysis of Gd2Zr2O7/YSZ multi-layered thermal barrier coatings subjected to thermal cyclic fatigue

Published

Failure analysis of Gd2Zr2O7/YSZ multi-layered thermal barrier coatings subjected to thermal cyclic fatigue

8 wt.% yttria stabilized zirconia (8YSZ) is the standard ceramic top coat material used in thermal barrier coatings (TBCs) due to its excellent...

Failure Analysis of Multilayered Suspension Plasma-Sprayed Thermal Barrier Coatings for Gas Turbine Applications

Published

Failure Analysis of Multilayered Suspension Plasma-Sprayed Thermal Barrier Coatings for Gas Turbine Applications

Improvement in the performance of thermal barrier coatings (TBCs) is one of the key objectives for further development of gas turbine applications....

Failure analysis of thermally cycled columnar thermal barrier coatings produced by high-velocity-air fuel and axial-suspension-plasma spraying : A design perspective

Published

Failure analysis of thermally cycled columnar thermal barrier coatings produced by high-velocity-air fuel and axial-suspension-plasma spraying : A design perspective

Axial-suspension-plasma spraying (ASPS) is a fairly recent thermal spray technology which enables production of ceramic top coats in TBCs,...

Functional coatings for high temperature applications in transport and energy sectors

Published

Functional coatings for high temperature applications in transport and energy sectors

Research projects