Results 111 to 120 of about 13,656,626 (360)

Impact of Hot Isostatic Pressing on Microstructure Evolution and Creep Performance of Powder Bed Fusion–Laser Beam Processed CM247LC

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Hot Isostatic Pressing (HIP) temperature on the microstructure and creep performance of powder bed fusion–laser beam processed CM247LC superalloy is investigated. Grain growth and γ’ precipitate evolution are characterized following HIP at varying temperatures.
Ahmed Fardan   +4 more
wiley   +1 more source

Beam Dynamics Study on Intense Beam Linac LEBT

open access: yesYuanzineng kexue jishu
In the low energy beam transport line (LEBT), the increase in beam emittance caused by space charge, spherical aberration of Glaser lens and impurity particles in the beam will increase the difficulty of matching the beam with the subsequent structure ...
WANG Changqiang, YANG Jinghe, YANG Yu, YAN Jie, FAN Yuxuan, LYU Yuepeng, LI Liang, WANG Xiulong, WANG Guobao
doaj   +1 more source

Direct Electron Detection Electron Energy‐Loss Spectroscopy: Speeding Up 2D Analytical In Situ Transmission Electron Microscopy for Aluminum Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Scanning transmission electron microscopy imaging techniques are an essential tool to document dynamic developments, such as precipitation in aluminum alloys, during in situ heating experiments using transmission electron microscopy. However, in many cases, chemical information is required to interpret complex nanoscale processes.
Evelin Fisslthaler   +4 more
wiley   +1 more source

Anomalous Propagation in Low Index Contrast Metamaterials: Assessment of the Beam Collimation Condition

open access: yesInternational Journal of Optics, 2012
Anomalous beam propagation in low index-contrast metamaterials has been analyzed. The condition for a well-collimated beam is found to be depending on the beam width and the pertinent Fourier component of the dielectric function. Guided by this condition,
Jun Tan, Weiwei Song, Wei Jiang
doaj   +1 more source

Structural Beams in Torsion [PDF]

open access: yesTransactions of the American Society of Civil Engineers, 1936
Bruce G. Johnston, Inge Lyse
openaire   +2 more sources

Study of the Effect of Process Parameters and Heat Treatment on the Formation and Evolution of Directed Energy Deposition of IN718‐CuCrZr Interface

open access: yesAdvanced Engineering Materials, EarlyView.
Bimetallic structures of Inconel 718 and CuCrZr are fabricated using the laser powder directed energy deposition method. The study reveals a strong dependence of interface characteristics such as width and interfusion on processing and heat treatment strategies.
Hamidreza Javidrad, Bahattin Koc
wiley   +1 more source

Fatigue Performance of Additively Manufactured Ti‐6Al‐4V: Impact of Different Kinds of Porosities, Surface, and Heat Treatments in Laser Powder Bed Fusion Productivity Parameters

open access: yesAdvanced Engineering Materials, EarlyView.
Ti‐6Al‐4V samples produced by laser‐powder bed fusion are tested for static and dynamic mechanical properties to systematically evaluate the effects of surface roughness and internal porosity when using productivity parameters. The most detrimental impact to fatigue is caused by surface roughness, lack of fusion and keyhole porosity in descending order.
Julian Emanuel Gunther Schulz   +4 more
wiley   +1 more source

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