Co-operation with industrial partners

The CoE- MEM strongly co-operates with industry supporting it with new ideas and approaches. The MEM organises expert workshops, trainings, consultations, etc. and provides expert opinions.

Steam Turbines

Micro/nanostructure characterisation of martensitic and austenitic steels for superclean thermal power plants

•Quantitative microstructural analysis by advanced microscopy and spectroscopy methods
•Correlation of steel micro- and nanostructure with properties
•Fractography
•Optimisation and application of new steels for clean energy systems

Gas Turbines

Characterisation of microstructural evolution of Ni-base superalloys as a function of high-temperature service conditions

Qualitative and quantitative microstructural analysis (LM, SEM, TEM, STEM-EDS) of coated and uncoated superalloys
Determination of microstructural parameters (particle size distributions, volume fractions, shape coefficients, interparticle spacings) and phase chemical composition to describe changes which occur in service
Correlation of microstructure with high-temperature properties
Determination of microstructural parameters for service life prediction
Improved understanding of creep- and damage mechanisms of high temperature components

ODS Alloys

Chemical composition of Fe-base ODS alloys

Fe – 20Cr - 4.5Al – 0.5 Ti – 0.5 Y2O3

Microstructure

ferritic matrix + nanoparticle dispersoids of yttrium-aluminium oxides:

3Y2O3×5Al2O3 YAT, Y2O3×Al2O3 YAP, 2Y2O3 × Al2O3 YAM

Properties

• high melting point: Tm =1482ºC

• low density: ρMA956 = 7.2 g/cm3

• very good creep resistance up to 1300°C

• high temperature corrosion resistance

Application up to 1150°C in extreme conditions:

- heat exchangers for energy systems and nuclear technology (fusion)

- components for aerospace

- components for chemical plant construction

- parts for high temperature furnace construction

- combustion parts for engines

- stirrers for the glass industry

-injection nozzles

Multilayered Coatings on Ti and TiAl alloys

Material:

Multilayered and graded titanium alloys (Timetal 834, Ti-6Al-4V, Ti-6Al-7Nb, γTiAl, ...)

Aim:

to tailor a coating microstructure for improvement of:
wear/erosion resistance
oxidation resistance

Characteriation:

-microstructure: quantitatively by advanced microscopy and spectroscopy methods
-properties: mechanical, tribological, corrosion, layer adhesion

Applications:

aerospace, automotive industry, energy systems
medicine (implant materials)

1. nanocrystalline δ-TiN (fcc)

2. Ti2N tetragonal body centered

3. Ti2N tetragonal primitive

4. α (N) (hcp)

Microstructure characterisation by analytical TEM

Microstructure analyses by SEM, fractography
Determination of mechanical properties of materials at room and elevated temperature
Non-destructive testing of materials (ultrasonic inspection, eddy current testing)
Magnetic methods for phase transformations
Mechanical spectroscopy
Mechanical alloying

3 TEMs equipped with STEM/EDS

quantitative TEM metallography,
electron diffraction,
spectrometry (EDS+EELS),
image analysis

Comprehensive TEM sample preparation laboratory

plan-view, cross-section thin foils, various replicas

Image analysis softwares:

AnalySIS 3.1, Aphelion, CRISP, JEMS...

Steam Turbines Micro/nanostructure characterisation of martensitic and austenitic steels for superclean thermal power plants •Quantitative microstructural analysis by advanced microscopy and spectroscopy methods •Correlation of steel micro- and nanostructure with properties •Fractography •Optimisation and application of new steels for clean energy systems
Gas Turbines Characterisation of microstructural evolution of Ni-base superalloys as a function of high-temperature service conditions Qualitative and quantitative microstructural analysis (LM, SEM, TEM, STEM-EDS) of coated and uncoated superalloys Determination of microstructural parameters (particle size distributions, volume fractions, shape coefficients, interparticle spacings) and phase chemical composition to describe changes which occur in service Correlation of microstructure with high-temperature properties Determination of microstructural parameters for service life prediction Improved understanding of creep- and damage mechanisms of high temperature components
ODS Alloys Chemical composition of Fe-base ODS alloys Fe – 20Cr - 4.5Al – 0.5 Ti – 0.5 Y2O3 Microstructure ferritic matrix + nanoparticle dispersoids of yttrium-aluminium oxides: 3Y2O3×5Al2O3 YAT, Y2O3×Al2O3 YAP, 2Y2O3 × Al2O3 YAM Properties • high melting point: Tm =1482ºC • low density: ρMA956 = 7.2 g/cm3 • very good creep resistance up to 1300°C • high temperature corrosion resistance Application up to 1150°C in extreme conditions: - heat exchangers for energy systems and nuclear technology (fusion) - components for aerospace - components for chemical plant construction - parts for high temperature furnace construction - combustion parts for engines - stirrers for the glass industry -injection nozzles
Multilayered Coatings on Ti and TiAl alloys Material: Multilayered and graded titanium alloys (Timetal 834, Ti-6Al-4V, Ti-6Al-7Nb, γTiAl, ...) Aim: to tailor a coating microstructure for improvement of: wear/erosion resistance oxidation resistance Characteriation: -microstructure: quantitatively by advanced microscopy and spectroscopy methods -properties: mechanical, tribological, corrosion, layer adhesion Applications: aerospace, automotive industry, energy systems medicine (implant materials)	1. nanocrystalline δ-TiN (fcc) 2. Ti2N tetragonal body centered 3. Ti2N tetragonal primitive 4. α (N) (hcp)
Microstructure characterisation by analytical TEM Microstructure analyses by SEM, fractography Determination of mechanical properties of materials at room and elevated temperature Non-destructive testing of materials (ultrasonic inspection, eddy current testing) Magnetic methods for phase transformations Mechanical spectroscopy Mechanical alloying 3 TEMs equipped with STEM/EDS quantitative TEM metallography, electron diffraction, spectrometry (EDS+EELS), image analysis Comprehensive TEM sample preparation laboratory plan-view, cross-section thin foils, various replicas Image analysis softwares: AnalySIS 3.1, Aphelion, CRISP, JEMS...