Markus Kirschner

• PhD
• Sales Specialist at Malvern Panalytical

The TRIP Steel matrix-based zirconia particle composites have been shown to depict significantly higher strength and ductility due to strain-based phase transformation during deformation. The composites’ macroscopic deformation depends on the microscopic behavior of each phase. Given an applied loading history, the local elastic and plastic anisotr...

Spheroidized steel microstructure presents a remarkable combination of strength and ductility suitable for cold forming applications. As the commercial spheroidization process consumes a significant amount of time and energy, therefore, suitable degree of spheroidization for specific material must be established to get the desired mechanical proper...

This work investigates a ferrite matrix with multiple non-metallic inclusions to evaluate their influence on the global and local deformation and damage behavior of modified 16MnCrS5 steel. For this purpose, appropriate specimens are prepared and polished. The EBSD technique is used to record local phase and orientation data, then analyze and ident...

Herein, micromechanical simulations for three different states of spheroidized steel (C45EC) are conducted under quasi‐static tensile loading based on the actual texture and crystallographic orientation from electron backscatter diffraction (EBSD) data. Data denoising is conducted with MTex (open‐source Toolbox with MATLAB) for cleaning up the EBSD...

Powder metallurgy is one way of producing complex, graded structures that could allow material systems to be produced with properties tailored to individual applications. However, powder metallurgy requires that the semi-finished products are very similar to the final component. It is much more economical to produce simple semi-finished products an...

Materials with high wear properties are necessary for the mining of raw materials. Technical ceramics with the high hardness, compared to metals, offer a good possibility here. However, ceramics have the disadvantage of a low ductility, compared to metals. Therefore, a combination of the high hardness of ceramics and the high strain of metals would...

This chapter addresses bulk forming processes-especially powder forging-used to produce complex shaped components from presintered TRIP-matrix composites. Based on experimentally determined material and process parameters (e.g., shrinkage, Poisson’s ratio, elastic modulus, oxidation behavior), extended process maps for compressible materials were p...

The ability to fabricate complex graded structures would be a significant step towards the manufacturing of material systems with properties tailored to individual applications. While powder metallurgy has had some success in this regard, it requires that the semi-finished products be exactly similar to the final component. However, it is significa...

Process maps according to Parasad et al. are already widely used to make statements about the formability of materials and their forming energy. However, these process maps only apply to conventional incompressible materials. At the TU Bergakademie Freiberg, these process maps have already been extended for particle-reinforced incompressible solid...

Forming processes such as rolling or forging require detailed knowledge of the flow of the stress and deformation behavior at hot working conditions. Therefore, the deformation behavior of 16‐7‐6 CrMnNi TRIP steel with 30 vol% MgPSZ composite is studied by hot‐compression tests at a strain rate of 1 s−1. And highly particle reinforced TRIP‐Matrix‐C...