Grain-boundary kinetics: a unified approach
WebA unified model of grain-boundary segregation kinetics is established, which can simulate the equilibrium and non-equilibrium grain-boundary segregation kinetics during … WebMar 8, 2024 · Abstract: Grain boundaries (GBs) are central defects for describing polycrystalline materials, and playing major role in a wide-range of physical …
Grain-boundary kinetics: a unified approach
Did you know?
WebAug 28, 2024 · Grain boundary (GB) motions, such as migration, sliding and rotation, have been shown to play a vital role in the mechanical performance of polycrystalline metals. Despite extensive efforts have been made on the pure polycrystalline metals, few attentions have been paid to those in alloys. WebMar 1, 2024 · Grain boundaries (GBs) are central defects for describing polycrystalline materials, and playing major role in a wide-range of physical properties of polycrystals. …
WebDec 14, 2024 · In this paper, we discuss a class of fundamentally different GB phase transitions. We identify a GB topological phase transition of a type of the class originally … WebApr 15, 1994 · An alternative model is proposed to extend the conventional view of diffusion under a concentration gradient in a grain boundary phase of width d. The conventional …
Webwhere grain boundary diffusion is dominant are modeled as "Type C" kinetics where diffusion in the bulk-like interior of the grains is frozen out by the relatively low annealing temperature. In this paper we will consider product phase formation under such conditions. "Type C" grain boundary diffusion is driven by a WebGrain boundaries (GBs) are central defects for describing polycrystalline materials, and playing major role in a wide-range of physical properties of polycrystals. Control over GB …
WebMar 18, 2024 · Grain boundaries (GBs) are considered as the effective sinks for point defects, which improve the radiation resistance of materials. However, the fundamental mechanisms of how the GBs absorb...
WebSep 28, 2011 · A unified model of grain-boundary segregation kinetics is established, which can simulate the equilibrium and non-equilibrium grain-boundary segregation … eastern united states weather radar mapWebOct 8, 2024 · We determined the velocities and curvatures of approximately 52,000 grain boundaries in a nickel polycrystal using three-dimensional orientation maps measured by high-energy diffraction microscopy before and after annealing at 800°C. Unexpectedly, the grain boundary velocities and curvatures were uncorrelated. culinary abstractionWebThe orientation dependence on recovery has been studied in cold-rolled and annealed polycrystalline high-purity aluminium (99.99 wt%), binary Al-0.25Mn and commercial purity aluminium. The growth mechanisms were found to be independent of the alloy system and the microchemistry only influences the coarsening kinetics. Orientation-dependent … eastern univ baseballWebGrain boundaries (GBs) are central defects for describing polycrystalline materials, and playing major role in a wide-range of physical properties of polycrystals. Control over GB kinetics provides effective means to tailor polycrystal … eastern university address st davidsWebThe microstructure of polycrystalline materials consists of networks of grain boundaries (GBs) and triple junctions (TJs), along which three GBs meet. The evolution of such microstructures may be driven by surface tension (capillarity), applied stresses, or other means that lead to a jump in chemical potential across the GBs. culinary academy of india entrance examWebJul 1, 2024 · First principles calculations were performed to study the kinetics of four experimentally observed grain boundaries consisting of two general asymmetric … eastern united states coastlineWebGrain-boundary kinetics: A unified approach. Progress in Materials Science, 98, 386–476. doi:10.1016/j.pmatsci.2024.05.004 10.1016/j.pmatsci.2024.05.004 culinary academy of india hyderabad fees