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Metallic materials are one of the most ubiquitous structural materials and a central pillar of our society. They are the backbone of power generation, transportation, structural engineering, or chemical industry. Many of these service domains include harsh environments, where specifically high temperatures in combination with complex loading profiles set high demands on metallic alloys. Examples include turbine components in aircrafts and classical power-generation systems, but also the generation and use of hydrogen, synthetic natural gas, or other renewable energy sources. These domains continuously strive towards higher energy efficiency and sustainability, pushing the boundaries of material performance to the extremes.
With this in mind, we are conducting research in the area of process-structure-property relationships of novel high-temperature metallic alloys together with partners from academia and the private sector. We experimentally determine mechanical properties and identify safety-critical damage and failure mechanisms under complex thermo-mechanical loads. These activities have a strong emphasis on mechanical testing under operational conditions (e.g., multi-axial loads, creep fatigue, complex load paths, crack propagation under thermo-mechanical fatigue), as to provide relevant scientific insights of microstructural deformation and failure mechanisms in realistic service conditions.
Our work defines application limits in high-temperature environments with a focus on novel alloy systems, including additively manufactured alloys, superalloys and high-entropy alloys, thereby contributing to materials safety in tomorrow’s energy and transportation systems.
further information
Fields of expertise
Characterization of structural materials under combined thermal and mechanical loading using advanced experimental methods between room temperature and 1200°C.
Stress spectrum: monotonic/static tensile and creep tests, uniaxial and multiaxial (axial-torsional) cyclic fatigue tests at constant or varying temperature
Crack propagation tests at high temperature
Dynamic Young’s modulus determination
Material spectrum: additively manufactured alloys, high-temperature steels and cast irons, poly- and monocrystalline nickel-based alloys, iron aluminides, light metals (Al, Ti alloys), technical ceramics
Online monitoring of damage evolution with the electropotential method, digital image correlation, thermography
Identification of damage mechanisms by microstructural analysis
Main activities
Experimental determination of deformation and failure behaviour under complex thermal-mechanical loads
Further development and adaptation of new methods of thermo-mechanical material testing
Determination of fundamental material parameters for the design of components
Range of services/technical equipment
Tensile/compression testing
Low-cycle fatigue (LCF) in air, inert gas, or vacuum
Thermo-mechanical fatigue (TMF) in air, inert gas, or vacuum
Axial-torsional testing
Stress rupture/creep testing
Crack propagation measurement at high temperature (also for TMF conditions) in air, inert gas, or vacuum
Resonance method for determination of temperature-dependent Young's modulus
Hardness testing (Brinell, Vickers, Rockwell)
Investigation of stability and development of microstructure
Our laboratory is accredited according to DIN EN ISO 17025.
Publications of the division
In the database PUBLICA you will find publications by BAM employees.