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Materials testing and characterization is a central component of the services at Leibniz-IWT. Using modern testing and analysis methods, we examine mechanical properties, microstructure, defects, and residual stresses. The results obtained provide reliable foundations for materials development, process optimization, and quality assurance – from sample to component.
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Services in the field of mechanical properties
Services in the field of metallographic analysis
Services in the field of civil engineering
Services in the field of microbiology
Services in the field of lightweight materials
Services in the field of melt atomization and spray forming
Services in the field of precision machining
Services in the field of abrasive processes and gear technology
Services in the field of physical analysis
Services in the field of heat treatment
Up to 250 kN (accredited)
Contact:
Dr.-Ing. Andree Irretier
Head of Department Metallic Materials and Structures / Head of Department Metallographic Analysis
Tel.: +49 421 218 51419
E-Mail: irretier@mpa-bremen.de
Low-Cycle-Fatigue (LCF), High-Cycle-Fatigue (HCF), Very High-Cycle-Fatigue (VHCF), Single/multi-axis loads (tension, compression, bending, torsion), various specimen shapes and frequencies, room temperature up to 1000 °C
Contact:
Dr.-Ing. Johanna Eisenträger
Head of Mechanical Properties
Tel.: +49 421 218 51320
E-Mail: eisentraeger@iwt-bremen.de
Crack propagation measurements, fracture toughness measurements, determination of the threshold value for crack growth
Contact:
Dr.-Ing. Johanna Eisenträger
Head of Mechanical Properties
Tel.: +49 421 218 51320
E-Mail: eisentraeger@iwt-bremen.de
2D measurement of deformations
Contact:
Dr.-Ing. Johanna Eisenträger
Head of Mechanical Properties
Tel.: +49 421 218 51320
E-Mail: eisentraeger@iwt-bremen.de
300 J working capacity (accredited), cryogenic notch impact test instrumented up to 10 K
Contact:
Dr.-Ing. Andree Irretier
Head of Department Metallic Materials and Structures / Head of Department Metallographic Analysis
Tel.: +49 421 218 51419
E-Mail: irretier@mpa-bremen.de
Up to 250 kN according to customer specifications
Contact:
Dr.-Ing. Andree Irretier
Head of Department Metallic Materials and Structures / Head of Department Metallographic Analysis
Tel.: +49 421 218 51419
E-Mail: irretier@mpa-bremen.de
Imaging fracture surface and surface analyses (topography and material contrast); element analysis using EDX (e.g., corrosion products, surface residues)
Microstructural properties such as orientation, phases, grain boundaries using EBSD
Microprobe analysis: qualitative and quantitative elemental analysis (WDX and EDX), elemental distribution images (point, line, and area distribution), analysis of light elements (O, N, C)
Plasma FIB analysis: Micro- and nanoanalysis, 3D characterization (EBSD, EDX, SEM), preparation of TEM lamellae and atomic probe samples, STEM investigations, ToF-SIMS (high-resolution chemical analysis of surfaces (depth of information approx. 1–3 monolayers), detection of contamination, thin layers
Contact:
Dr.-Ing. Andree Irretier
Head of Department Metallic Materials and Structures / Head of Department Metallographic Analysis
Tel.: +49 421 218 51419
E-Mail: irretier@mpa-bremen.de
Holistic microstructure characterization (ferrous and non-ferrous metals), diverse contrast options for displaying microstructures, grain boundaries, phases, and inclusions, optical contrast
Image analysis measurement methods in accordance with current standards (purity, grain size, microstructure, pore, and phase determination)
Hardness testing according to current standards on surfaces, gradients on nitrided, case-hardened, and surface-hardened ground samples (NHD, CHD, SHD); micro, small, and macro load ranges (0.05–30 kp)
Contact:
Dr.-Ing. Andree Irretier
Head of Department Metallic Materials and Structures / Head of Department Metallographic Analysis
Tel.: +49 421 218 51419
E-Mail: irretier@mpa-bremen.de
Non-destructive reinforcement detection, material sampling (drill dust and drill cores), creation of carbonation, chloride, and sulfate profiles of concrete components, determination of adhesive tensile strength
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contakt:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Contact:
Dipl.-Ing. Axel Meyer
Head of Civil Engineering, Head of Surveillance and Certification Body for Building Materials
Tel.: +49 421 53708 21
E-Mail: meyer@mpa-bremen.de
Method A: Resistance of plastics to fungi, Method B: Fungistatic effect, Method C: Resistance to bacteria
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Measurement of antibacterial activity on plastics and other non-porous surfaces
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Environmental conditions and test procedures for airborne equipment – fungus resistance
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Susceptibility of materials to fungal growth
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Sealants – Determination of microbiological performance
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Resistance to fungal growth
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Resistance to microbial growth
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Textiles – Determination of antibacterial activity and efficacy on textile products
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Textiles – Determination of antifungal activity of textile products – Part 2: Plate count method
Contact:
Dr. Antje Stahl
Head of Working Group Microbiology
Tel.: +49 421 53708 79
E-Mail: a.stahl@mpa-bremen.de
Eddy current testing
Contact:
Dr.-Ing. Anastasiya Tönjes
Head of Lightweight Materials
Telefon: +49 421 218 51491
E-Mail: toenjes@iwt-bremen.de
Determination of heat capacity, melting point, characterization of other phase transitions, DSC/TGA up to 1600°C
Contact:
Dr.-Ing. Anastasiya Tönjes
Head of Lightweight Materials
Telefon: +49 421 218 51491
E-Mail: toenjes@iwt-bremen.de
3D scanning of samples/components
Contact:
Dr.-Ing. Anastasiya Tönjes
Head of Lightweight Materials
Telefon: +49 421 218 51491
E-Mail: toenjes@iwt-bremen.de
Particle size distribution using diffraction spectrometer (BSM), flowability (Hall flowmeter, dynamic angle of repose), bulk and tamped density
Contact:
Dr.-Ing. Anne Geppert
Head of Melt Atomization and Spray Forming
Tel.: +49 421 218 51231
E-Mail: geppert@iwt-bremen.de
CPS disc centrifuge, (5 nm – 75 µm), BET measurement, UV/Vis spectroscopy, thermogravimetric analysis (TGA) with mass spectrometry (MS), powder XRD
Contact:
Dr.-Ing. Anne Geppert
Head of Melt Atomization and Spray Forming
Tel.: +49 421 218 51231
E-Mail: geppert@iwt-bremen.de
Measurement of the shape, structure, and topography of high-precision (optical) parts and components
Microscopy for topography and structure measurement, interferometric and profilometric shape measurement
Contact:
Dr.-Ing. Oltmann Riemer
Head of High-precision technology / Head of Laboratory for Precision Machining (LFM)
Tel.: +49 421 218 51121
E-Mail: riemer@iwt.uni-bremen.de
Macrogeometry (profile and flank line, pitch, concentricity, tooth width, etc.), microgeometry (roughness), Barkhausen noise
Contact:
Dr.-Ing. Tobias Hüsemann
Head of Abrasive Processes and Gear Technology
Tel.: +49 421 218 51190
huesemann@iwt-bremen.de
Stationary measurements for components weighing up to 10 kg, mobile diffractometers for measurements on large components or for measurements at customer sites, testing of all metallic materials
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Telefon: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Stationary measurements for components up to max. 10 kg, examination of all metallic materials, analysis under grazing incidence for thin layers and with high resolution, identification of existing phases
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Telefon: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Quantitative evaluation of phase analyses using the Rietveld method, determination of residual austenite, analysis and quantification of carbides, precise determination of nitride and oxide contents
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Telefon: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Textural analysis on different types of components, evaluation in the form of pole figures or orientation density functions (ODF)
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Telefon: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
In-situ analyses of phase transformations, residual stress changes, or changes in lattice defects
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Non-destructive testing of components and samples for qualitative evaluation of edge zone properties, quantitative analysis of properties such as hardness, residual stresses, and residual austenite content after appropriate calibration, testing and evaluation of grinding burn on samples and components, surface analysis of micromagnetic properties with 20 µm spatial resolution (BEMI)
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Optical emission spectroscopy; quantitative analysis of all common elements for the following base materials: Fe, Al, Ti, Ni, Cu; possibility of single spark analysis for inclusion analysis (PDA); full analyses; carbon and nitrogen depth profiles with stepwise material removal
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Glow discharge spectrometry for detecting element depth profiles with high depth resolution (approx. 20 nm) up to a depth of 100 µm, analysis of oxides, nitrides, PVD, CVD layers, etc., quantitative analysis of all common elements for the following base materials: Fe, Al, Ti, Ni; conductive and non-conductive materials
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Carrier gas hot extraction, quantitative analysis of O, N, and H from approx. 1 ppm, sample form: solid samples, chips, powder
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Carbon-sulfur determination using combustion method; carbon approx. 4 ppm to 3.5%, sulfur approx. 4 ppm to 0.35%; sample form: solid samples, chips, powder
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Chemical analysis using X-ray fluorescence analysis, solid samples and powder material, metallic materials, building materials, geological material, mapping of chemical composition with 0.3 mm spatial resolution
Contact:
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Sub-nm spatial resolution, analysis of all chemical elements except hydrogen, detection of local chemical gradients, e.g., at grain boundaries or in precipitates
Contact:
Dr.-Ing. Lisa Belkacemi
Research Scientist
Tel.: +49 421 218 51372
E-Mail: belkacemi@iwt-bremen.de
Dr.-Ing. Jérémy Epp
Head of Physical Analysis
Tel.: +49 421 218 51335
E-Mail: epp@iwt-bremen.de
Measurement of NHD, CHD, hardness curves, general hardness measurement
Contact:
Ingo Bunjes
Technical Management Hardening Shop
Tel.: +49 421 218 51343
Härterei / Halle 2B: +49 421 218 51469
Härtereibüro: +49 421 218 51348
E-Mail: bunjes@iwt-bremen.de