Operational Behavior under Medium Influence

- Tasks / Main focus
- Special facilities
- Contact person

Department 56 Operational Behaviour under Medium Influence is subdivided into the following Units:

  • Unit 561  Influence of Hydrogen and Oxygen
  • Unit 562  Corrosion
  • Unit 563  Fatigue and High Pressure Testing

Task of the department is the determination of material and component behavior. The investigation of material and component behavior is performed with regard to deformation, crack initiation, crack propagation and failure. These investigations are performed under static or cyclic load, at temperatures in the range of 4 K up to the creep range. Additionally the corrosion behavior of materials in different media, temperatures and pressure is examined, optionally with components subjected to mechanical loads. Particular testing competences are the testing in compressed gaseous hydrogen and in cryogenic hydrogen.

 Tasks / Main Focus
Research
  • Determination and characterization of material and component behavior (deformation and failure including crack initiation and crack propagation) under static and cyclic load in the temperature range from 4 K to the creep range
  • Investigation of corrosion behavior and evaluation of the influence of medium, temperature, pressure and mechanical load
  • Optimization and qualification of materials and their weld connections
  • Material behavior in compressed hydrogen and helium as well as liquid hydrogen in the temperature range from 4 K up to 563 K
  • International and national scientific cooperations
Testing / Determining
 
  • Standard tests and individually adapted tests such as tensile tests, compression tests, torsion tests, fracture mechanic tests, alternating stress / strain tests, inner pressure tests, experimental investigation of crack initiation and crack propagation under uniaxial and complex loaded steels, metallic alloys, ceramic, synthetic materials and  compound materials in different media
  • Experimental investigation of component behavior, e.g. power plant or automotive components under operational load
  • Determination of stresses and strains during loading
  • Determination of time dependent and load cycle dependent redistribution of stresses and strains
  • Determination of maximum load or fatigue
  • Determination of time or position dependent damage development
  • Determination of load or number of load cycles in the moment of failure
  • Determination of material properties under influence of hydrogen
  • Investigation of corrosion / electrochemical investigations
  • Determination of residual stresses by X-ray diffraction
 
Rissausschnitt
Crack in sample
 
Consulting service
  • Selection of test parameters and test methods
  • Use of materials in hydrogen environment
  • Material selection with respect to corrosion influence
Cooperation in Committees
  • Technical Committee „Hydrogen Technology“
  • GfKorr Workgroup „High Temperature Corrosion“
Courses
  • Student research projects, bachelor and master theses with theoretical or practical focus in the field of fatigue behavior under medium influence
H2 - Prüfsystem Diagramm
Hydrogen test rig
Comparision of fracture appearance in helium and hydrogen
 Special Facilities
 
  • Servohydraulic Universal Test Machines
  • Electromagnetic Resonance Test Machines
  • Individual Test Setups according to customer specifications with hydraulic cylinders
  • Electromagnetic Fatigue Testing Machines
  • Inner Pressure and Impulse Test Machines
  • Simulation of Environmental Influences with Salts Spray and Humidity Tests according to DIN EN ISO 9227 and VDA-Prüfblatt 621-415
  • Temperature Conditioning Devices, Corrosion Testing Facilities
  • High-Pressure Autoclave Systems for investigation of medium Influence
    (Hydrogen, Oxygen, high-purity water, …)
  • Burst Chambers
Further Information
Contact person

Secretary

Mrs. R.-M. Rohrbach



 ++49 (0)711/685-63008
 

Head of Department

Mr. Dipl.-Ing. S. Zickler



 ++49 (0)711/685-60313
 ++49 (0)711/685-63046
 

N.N.

 

Units

Influence of Hydrogen and Oxygen



Mr. Dipl.-Ing. C. Kohler

 

 ++49(0)711/685-63921
 

Corrosion

Mrs. Dipl.-Ing. S. Kaesche

 ++49(0)711/685-66722
 

Fatigue and High Pressure Testing

Mr. Dipl.-Ing. G. Schellenberg

 ++49(0)711/685-62576