Frazil particles, ice crystals or slushy granules that form in turbulent water, change the freezing properties of to create “frazil ice”. To understand microstructural characteristics these particles and physical frazil greater depth, an situ sampler was designed collect Yellow River. The crystal (morphology, size, air bubble, sediment) were observed under a microscope, their nucleation mechani...

It is well-known that the harsh operational conditions of turbine blades lead to a gradual change in the microstructure of underlying Ni-based superalloy of blades. According to this, a rejuvenation process should be conducted on turbine blades superalloys to recover their microstructures. The first and main step of rejuvenation process is the determination of appropriate solution condition in ...

Transparent glasses in a system of Li2O-MgO-SiO2-Al2O3-Fchemical constituents were prepared by melt quenching method. In the fabrication of nanocrystal glass-ceramics, controlled nucleation and subsequent crystal growth were necessary to avoid loss of transparency. It was therefore important to understand thermal properties and crystallization kinetic...

Crack initiation governs high cycle fatigue life and is sensitive to microstructural details. While corresponding microstructure-sensitive models are available, their validation difficult. We propose a framework where test mimicked in sub-modeling simulation by embedding the measured microstructure into specimen geometry adopting an approximation of experimental boundary conditions. Exemplary, ...

In this study, the difference between in-phase (IP) and out-of-phase (OP) thermomechanical fatigue (TMF) cycling at 100–850 °C of a single-crystal superalloy is investigated both from mechanical response resulting microstructure perspective. Results indicate that there no significant in lives IP OP TMF when similar strain ranges crystal orientations are considered. The deformation mechanisms oc...

Lath martensite is a complex hierarchical compound structure that forms during rapid cooling of carbon steels from the austenitic phase. At smallest, i.e., ‘single crystal’ scale, individual, elongated domains, form elemental microstructural building blocks: name-giving laths. Several laths nearly identical crystallographic orientation are grouped together to blocks, in which–depending on exact...