The present work explores for the first time additive manufacturing of powder mixtures consisting Chromium Nitride (Cr2N) and AISI 316L with laser bed fusion (L-PBF). addition 2.5 wt% Cr2N to an resulted in successful dissolution both chromium nitrogen into a fully austenitic stainless steel microstructure. content was augmented from 0.09 as-delivered 0.31 L-PBF built part, causing slight expan...

Ni bonded (Nb,W,Ti)(C,N) solution cermets with overall compositions of NbC-(6–20)Ni-18WC-14 Ti(C0.7N0.3) (wt%) were prepared by pressureless vacuum sintering compacted NbC, Ni, WC and mixtures. The microstructure, phase constitution, room temperature mechanical properties investigated the composition in sintered at 1450 °C was simulated thermodynamic modelling. exhibited a microstructure cubic ...

The influence of the structural state on deformation mechanisms under large strains was investigated in a Cu – 2 wt.% Be alloy. Torque evolutions during straining exhibit serrations typical relaxations precipitation-hardened alloy, but not solid solution state. Microstructure characterization revealed that homogeneous led to strong grain size reduction (20 nm), while localization occurred preci...

The direct link between microstructure and material properties is the core principle underpinning modern material science and engineering. Phase transformations in solids and solidification of melts have been extensively studied to the point where the key elementary processes, process steps and process variables are well understood. Less well investigated and less well understood are the change...

We have comprehensively analyzed the influence of the probe beam’s polarization state and incident angle on the vibrational absorption spectra of thin solid films such as hydrogenated amorphous silicon nitride and hydrogenated amorphous silicon in Fourier transform infrared spectroscopy. This analysis demonstrates the nuisance of interference fringes in distorting the bond structure of thin sol...

Abstract Applying additive manufacturing (AM) technologies to the fabrication of aluminum automotive components, with an optimized design, may result in improved vehicle light weighting. However, post-process heat treatment such alloys has be customized for particular AM microstructure. The present study is aimed at investigating effect different treatments on microstructure, hardness and resid...

It is often assumed that the viscoelastic properties of dense colloids are determined by the colloid volume fraction, the interaction potential, as well as the particle size distribution and shape. The dependence of the viscoelastic behavior of particle suspensions and gels on these parameters has been widely studied, and is well understood in many cases. In contrast, our knowledge on the influ...