AlSi7Mg0.6 alloy is the most widely used cast for aerospace and automotive applications. Therefore, it essential to explore effect of scanning strategy parameters on final part properties in laser powder bed fusion (L-PBF) process. The stripes chessboard strategies such as stripe length, rotation angle, island size mechanical microstructural L-PBF processed studied. evolution residual stresses ...

•DTI can provide information on microstructural white matter integrity.•White matter microstructural integrity is not related to cognitive decline in SVD.•These results are in contrast with cross-sectional findings.•Other factors than white matter microstructural damage underlie this cognitive decline.

We have analyzed the stress build-up and vacancy dynamics due to material transport caused by electromigration in dual-damascene interconnect structures. Our model incorporates all relevant driving forces for material transport with a complete integration of mechanical stress in connection with microstructural aspects. First, it is shown that the addition of redundant vias can be effective in i...

BACKGROUND Diffusion tensor imaging measures of white matter (WM) microstructural integrity appear to provide earlier indication of WM injury than WM hyperintensities; however, risk factors for poor WM microstructural integrity have not been established. Our study quantifies the association between vascular risk factors in midlife and late life with measures of late-life WM microstructural inte...

Microstructural aspects of composites such as particle size, shape, and distribution play important roles in deformation behavior. 3D visualization of porosity and Fe-rich inclusions in three dimensions is critical to a thorough understanding of fatigue resistance of metal matrix composites (MMC) because cracks often initiate at these defects. In this paper we have used X-ray synchrotron tomogr...

Steels are being designed with ever decreasing interstitial contents. At the same time, processing technology allows accelerated cooling without excessive distortion or microstructural gradients [1–5]. Lean steels with lower ‘carbon equivalents’ can therefore be manufactured, making fabrication relatively easy. Alloys such as these give uniform microstructures in spite of solidfication–induced ...

Heat treatment of wood is an effective method to improve the dimensional stability and durability against biodegradation. Optimisation of a two-stage heat treatment process at relatively mild conditions (<200°C) and its effect on the anatomical structure of hardwoods were investigated by means of a light and scanning electron microscopic analysis. Hardwood species such as beech and poplar, were...

Results from an experimental investigation on the compression behavior of balsa wood are presented. Specimens with varying densities, ranging from 55 to 380 kg/m, are loaded in the grain (fiber, cell) direction using a screw-driven material testing system at a strain rate of 10 s. The results indicate that compressive strength of balsa wood increases with increasing density. Post-test scanning ...