Material testing
Versatile measuring for quality control.
Material testing can be used to examine and evaluate a wide range of properties and characteristics of materials. With our measuring instruments, we test a material with regard to its resistance, strength, hardness, purity or resilience. As many methods there are for non-destructive material testing, as versatile are the areas of application. Whether conductivity, ferrite content, surface profile, dew point or hardness: Whenever you need a statement on material properties, we have the right measuring solution for you. Precise, reliable, fast and non-destructive.
Together we will find the right solution for even the most challenging applications – from tactile handheld devices to automation solutions.
Why it is important to test materials?
Material failure can have fatal consequences. Therefore, check materials and their processing regularly for safety, reliability and durability. Thanks to non-destructive materials testing, you can identify even the smallest weak points and defects on material surfaces and inside. This enables you to guarantee the quality of your products, reduce process and material costs and keep a constant eye on your processes to prevent economic and health damage.
Fischer material testing instruments guarantees absolutely reliable measurement results at every step of your production process – from incoming goods inspection to production. Benefit from versatile measuring devices with different measuring methods in the field of non-destructive material testing. All instruments are designed for fast and accurate measurement.
Why Fischer?
We see ourselves as your technical advisor, partner and expert in all aspects of material testing.
To ensure that you end up with the best solution, we clarify the following questions, among others:
What are your applications? Which material properties would you like to test?
Where do you want to measure on the test part? How many measuring points are required?
In which environment do you measure?
Which of our measuring devices is best suited for the cost- and benefit-optimized solution to your measuring task?
What is the procedure for optimum performance and accuracy?
What standards, training or accessories do you need to be effective quickly with your new measuring device?
Your material testing. Our measuring methods.
We offer various test methods for material testing. The base material and the coating material of the test part determine which measuring method is suitable for your application.
Ferrite content measurement
Ferrite content measurement is used to test the mechanical properties and chemical resistance of austenitic and duplex steels. Too low a ferrite content in the weld area leads to a significant reduction in strength. Too high a ferrite content reduces corrosion resistance, toughness and ductility. Here it is necessary to determine the ferrite content precisely and to detect even the smallest defects. With ferrite content measurement, you can ensure the best possible corrosion protection. The ferrite content is measured using the magnetic induction method. All magnetizable microstructural components are recorded, i. e. not only delta ferrite but also, for example, deformation martensite or other ferritic phases that can influence the measurement results.
The FERITSCOPE® DMP®30 handheld measuring gauge is the right solution for determining the ferrite content and martensite content quickly and non-destructively.
Conductivity measurement
Conductivity measurement allows you to indirectly check the composition of metals on the basis of conductivity in a non-destructive manner. As the reciprocal of electrical resistance, conductivity not only indicates how well a metal conducts electric current: Conductivity measurement also indirectly provides information about the microstructure, mechanical properties and changes in the composition of a material. High conductivity may indicate damage or contamination of the coating or material, while low conductivity may indicate an intact protective layer or a lack of electrical conductivity in the base material. Conductivity measurement allows, among other things, conclusions to be drawn about the hardness and strength of heat-treated materials or can detect foreign metals in gold bars, for example.
With Fischer's tactile measuring instruments, you can determine conductivity quickly and accurately. Conductivity measurement uses the phase-sensitive eddy current method.
Measuring the surface profile
"Surface profile" refers to the nature of the surface of a material and provides information about the differences in height, irregularities or even the roughness of a surface. The surface profile has a significant influence on the performance of a coating. It affects adhesion, protection, coating thickness, and therefore material consumption. Very smooth surfaces with low profiles are difficult to coat because the coating adheres poorly. Surfaces with high profiles require very thick coatings and are therefore costly. For durable adhesion of protective coatings, the external conditions must be checked in advance and the surface profile values of the base material must be precisely maintained.
The MMS® Inspection SPG tactile measuring device reliably and non-destructively records the surface profile via a one-dimensional stylus profile. In other words, the height difference from tip to valley is measured.
Dew point measurement
Optimum ambient conditions are essential for the coating process. The humidity, air temperature and surface temperature have a significant influence on the drying time, curing, viscosity, quality and adhesion of the surface coating. If a coating is applied to a surface that is still wet, this can lead to coating defects such as blistering or damage. The result is premature corrosion. Therefore, continuously monitor the dew point to ensure optimum coating quality and performance.
With our MMS® Inspection DPM tactile measuring device for dew point measurement, you can reliably and non-destructively record relative humidity, air temperature and surface temperature.
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