Services and equipment

  •  Failure analysis
  •  Research- and development projects
  •  Macro- and microstructure analysis
  •  Quasi-static and cyclic material-, component testing
  •  Tribological and corrosive testing
  •  Component and implant testing

 

Equipment

The labortatories of the institute of material science dispose of a modern device equipment which allows to examine the quasi-static and cyclic properties of different materials and material states. For quasi-static loads universal test machines, for cyclic loads mechanical and servo-hydraulic machines are used. A superposition with chemical and tribological loads is possible.

Regarding the investigation of chemical and tribological properties of materials suitable corrosion, sliding wear, fretting, fretting-fatique and cavition test stands are available.

A microscopic analysis of materials, material states and fracture surfaces is carried out through light microscopes, which are connected to a modern image processing system. The presentation at higher magnifications is done by scanning electron microscopy with energy dispersive X-ray spectroscopy (EDX) and electron backscatter diffraction (EBSD). For further metallurgical investigations the institute of material science owns a transmission electron microscope with suitable chemical (electrolytic etching) and physical (ion beam etching) specimen preparation.

 

Mechanical material testing

 

quasi-static up to 160 kN, from room temperature to 1100 °C
cyclic up to 160 kN, from room temperature to 800 °C

 

Chemical material testing

 

chemical testing (inc. measurement of pH number and oxygen content)

Test station measurement of current density - potential, polarisation- resistance

Steady immersion test, repassivation measurement

 

Tribological material testing

 

Sliding wear, continuous , reciprocating
Fretting, Fretting-Fatigue, cavitation,
tactile und optical 3D profilometry

 

Metallography

 

Optical microscopy with digital image processing
Scanning electron microscopy (SEM) with EDX and EBSD
Transmission electron microscopy (TEM)

 

Stent testing

 

Test station, simultaneous measurement of mechanical properties of stents under quasi-static
and cyclic load and corrosion potential