12 papers
Operando observation of strain relaxation in fatigued pearlitic steel
Louis Lesage, Johan Ahlström, Yubin Zhang +1
Pearlitic steels are the material of choice for railway wheels and rails, where their lamellar ferrite-cementite structure balances cost, strength, and wear resistance. However, in…
Geometrically necessary boundaries accommodate the residual elastic strain in cold-rolled Fe-3%Si
Aditya Shukla, Nikolas Mavrikakis, Can Yildirim
The relationship between plastic deformation accommodation structures and residual elastic strain fields in deformed metals is poorly understood at the intragranular scale, largely…
Diamond compound refractive lenses for high energy Dark Field X-ray Microscopy
Steffen Staeck, Can Yildirim, Frank Seiboth +4
Compound-refractive lenses (CRL) are a type of x-ray optics that find widespread applications as focusing and imaging lenses. The choice of material is one of the most defining pro…
Multilayer Laue Lenses for Enhanced Spatial Resolution in Dark-Field X-ray Microscopy
Steffen Staeck, Can Yildirim, Raquel Rodriguez-Lamas +5
We introduce the use of a crossed pair of Multilayer Laue Lenses (MLLs) as an objective in Dark-Field X-ray Microscopy (DFXM). In a demonstration experiment at the ID03 beamline at…
Revealing 3D orientation and strain heterogeneity in calcite generated by bio-cementation
Marilyn Sarkis, James A. D. Ball, Michela La Bella +5
Bio-cementation uses bacterially induced calcite to bind sand grains, offering a low-carbon approach to soil stabilization. However, the 3D morphology, orientation texture, and int…
Unexpected Planar Dislocation Boundary Formation in FCC Metals Captured by Dark-Field X-ray Microscopy and Continuum Dislocation Dynamics
Adam André William Cretton, Khaled SharafEldin, Axel Henningsson +8
Validating dislocation patterning models against in situ imaging experiments is a longstanding goal in materials physics. Here, we provide the first direct morphological comparison…