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Projects

Read about some of the industrial pilot projects funded by Sweden’s Innovation Agency, Vinnova, in order to build competence and capacity regarding
industrial utilisation of large-scale research infrastructures.

X-Cut rig Dry High Speed Cutting using TiAlN-coated tool. Photo: Jens Birch.
X-Cut rig Dry High Speed Cutting using TiAlN-coated tool. Photo: Jens Birch.

Characterisation of hydrogen and strain interactions in the microstructure of duplex stainless steel using x-ray diffraction

Duplex stainless steels have experienced some failures in subsea applications when subjected to cathodic protection. This is due to hydrogen-induced stress cracking, a type of hydrogen embrittlement failure. Since only large components such as forgings have had failures, but not smaller components such as seamless tubes, this has been linked to the coarseness of the microstructure. Understanding the effect of hydrogen on microstructural degradation of advanced stainless steels has however remained challenging.

Characterisation of hydrogen and strain interactions in the microstructure of duplex stainless [...] (PDF 314 kB)

3D analysis of fatigue cracks in cast irons using in-situ x-ray synchrotron tomography

Trucks and buses from Scania CV AB have several cast iron parts exposed to cyclic loads. These cyclic loads may lead to fatigue damage. A significant factor in damage development for cast iron components is crack propagation and this very often controls the total life of a component. A deeper understanding of the relation between the different microstructural constituents and the propagation of cracks would enhance material development efforts, as well as the ability to design and cast components with improved fatigue properties.

3D analysis of fatigue cracks in cast irons using in-situ x-ray synchrotron tomography (pdf 237 kB)

Stress mapping on ultra-high strength steel (UHSS) cut edges using high-energy X-ray diffraction

During cutting operations in the process route from steel plate to finished product stresses can be introduced that can be detrimental later in the products life. This is especially true in connection with fracture induced by hydrogen embrittlement (HE). A prerequisite for HE is the introduction of residual stresses originating from plastic deformation during the cutting process.

Stress mapping on ultra-high strength steel (UHSS) cut edges using high-energy X-ray [...] (pdf 490 kB)

3D investigation of grain orientation induced braze alloy wetting

Braze clad on aluminium sheets enables fast and convenient brazing assembly of complex heat exchangers. A well-known, but poorly understood, application problem is that the braze alloy may penetrate into the bulk of the sheet material, which reduces the corrosion resistance.

3D investigation of grain orientation induced braze alloy wetting (pdf 251 kB)

Belongs to: Center for X-rays in Swedish Materials Science (CeXS)
Last changed: Apr 22, 2021