Characterization I Analysis I Measurement I Testing

NDT test lab

The accredited NDT test lab at Fraunhofer IKTS offers a complete range of non-destructive testing services for classic routine testing using standard or modified methods. Unconventional tasks, feasibility studies, development of test concepts, and validation/qualification of new processes and test concepts are all part of the accredited test lab’s full-service NDT offering and can be performed for clients in all industries either at the client site or in the testing laboratory according to the specific task.

The test lab at Fraunhofer IKTS is accredited to perform three non-destructive test (NDT) methods.
© Fraunhofer IKTS
Ultrasonic inspection of a GFRC component.
© Fraunhofer IKTS
X-ray inspection of an electronic assembly.
© Fraunhofer IKTS
Micromagnetic inspection of a steel girder.

The full-service NDT offering encompasses all steps from consulting to the individualized test result. Activities can begin with feasibility studies for customized methods, modification, supplementation, or adaptation of existing test methods or development of new methods and continue with validation, conceptual design, and creation of test solutions and customer-specific services. Feasibility studies are conducted for use of existing NDT methods on new materials and applications and for modifications based on existing methods. For each defined problem, the feasibility under the given conditions is checked for a number of different approaches. The accredited NDT test lab draws on commercially available testing technologies as well as all new technologies developed at Fraunhofer IKTS. Individual problems can be solved using state-of-the-art sensors, equipment, and algorithms.

If no standards exist for a specific application case for an NDT method, the NDT test lab optimizes, evaluates, and validates the method under the given customer-specific conditions. With the validation process, which is far-reaching due to the flexible scope of the accreditation, the applicability and the conditions of applicability of a non-standard test method for a specific case are demonstrated through a more detailed investigation.

The flexible-scope validation issued by the Deutsche Akkreditierungsstelle (DAkkS) allows the NDT test lab to validate test methods developed in-house in five categories (ultrasonic, eddy current, magnetic particle, penetrant, and visual) and to apply them like standard methods to customer problems. For other methods, any of the available standards can be selected.

 

Services offered

 

Ultrasonic methods

  • Detection of volume defects with a material- and method-dependent resolution of Ø ≥ 100 μm
  • Ultrasonic scan on planar, curved, and rotationally symmetric samples made of various materials (object parameters: weight < 100 kg, dimensions < 500 x 300 x 300 mm)

Probe characterization

  • In accordance with DIN EN 12668-2, DIN EN 16392, and other methods

X-ray methods

  • X-ray microtomography
  • Laminography for partial areas of planar assemblies, such as printed circuit boards
  • X-ray diffraction for analysis of phases and surface tension

Eddy current methods

  • Manual testing of components with various geometries
  • Eddy current scans, spatial resolution of up to 200 μm
  • Inspection for surface defects, conductivity measurement following calibration, and determination of coating and wall thickness
  • Investigations using various sensors (absolute and differential sensors), measurement frequencies up to 100 MHz

Micromagnetic materials characterization

  • Use of the Barkhausen effect
  • Testing with 3MA and FracDim® in the laboratory and on site
  • Realistic estimation of material damage
  • 2D measurement of internal stress with/without experimental calibration
  • Determination of hardness and other microstructurally dependent parameters (e.g., hardening depth, defects)

Active thermography

  • Lock-in thermography possible
  • Various excitation modes: thermal (e.g., hot air), electrical (conduction, induction), or optical (laser, IR emitter, halogen emitter)

Other surface methods

  • Penetrant, magnetic particle, or visual testing
  • Inspection for near-surface defects and surface properties
  • Can be used on nearly all types of materials