Results 41 to 50 of about 76,386 (252)
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Gases vacuum dedusting and cooling
Trudy Odesskogo Politehničeskogo Universiteta, 2014 Represented are the results of operating the ladle degassing vacuum plant (productivity: 120 tons of liquid steel) with various dust collectors. The process gases’ cooling and dedusting, obtained in the closed loop buran study, provides opportunity to ...
Олексій Олександрович Буров +2 more
doaj +4 more sources
Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
European Mechanical Science, 2019 In the present study, cooling of a duplex house placed in Isparta province by using solar-powered single effect absorption refrigeration system, which uses water-lithium bromide (H2O-LiBr) mixture, was evaluated in details.
Bengi Şanlı
doaj +1 more source
Cavity cooling of free silicon nanoparticles in high vacuum [PDF]
Nature Communications, 2013 Laser cooling has given a boost to atomic physics throughout the last thirty years since it allows one to prepare atoms in motional states which can only be described by quantum mechanics. Most methods, such as Doppler cooling, polarization gradient cooling or sub-recoil laser cooling rely, however, on a near-resonant and cyclic coupling between laser ...
Asenbaum, Peter +4 more
openaire +5 more sources
Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source
Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing
Advanced Engineering Materials, EarlyView.This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu +10 more
wiley +1 more source
CFD Simulation of Heat and Mass Transfer during Vacuum Cooling Process for Cabbage
Zhileng xuebao, 2012 Effective vacuum cooling simulation has the advantage of low cost and short period, and therefore is important in theory and application. Based on the theories of unsteady heat transfer and mass conservation, a mathematical model developed by CFD ...
Wang Xueqin, Liu Baolin, Yan Jingwen
doaj +2 more sources
Materials Research Express, 2020 AE44-2 magnesium (Mg) alloys were fabricated by gravity casting (GC), high pressure die casting (HPDC), and high vacuum assisted high pressure die casting (HVHPDC).
Taihe Le +5 more
doaj +1 more source