Results 71 to 80 of about 53,232 (291)
Materials & Design, 2021 An integrated modeling framework coupling the discrete element method for powder spreading, finite volume method for powder bed melting, and an extended cellular automaton method for grain structure evolution during solidification is proposed.
Feiyu Xiong +6 more
doaj +1 more source
Analytical solution for heat conduction due to a moving Gaussian heat flux with piecewise constant parameters [PDF]
, 2018 We provide an analytical solution of the heat equation in the half-space subject to a moving Gaussian heat flux with piecewise constant parameters.
Forslund, Robert +2 more
core +2 more sources
Research on image monitoring method of electron beam selection melting
IOP Conference Series: Materials Science and Engineering, 2019 Abstract In order to overcome the problem that the lack of real-time detection technology and the existing detection methods cannot select the process area flexibly in the process of electron beam selective melting, this paper presents a digital electronic imaging method which can monitor the roughness and tiny flaws on the surface of ...
Jiaming Wang +5 more
openaire +1 more source
Analysis on Defocusing and Astigmatism of Electron Beam Selective Melting Machines
Journal of Physics: Conference Series, 2020 Abstract Affected by defocusing and astigmatism, the quality of electron beam steadily deteriorated with increasing deflection distance, limiting the processing area of SEBM machines. The relationship among beam spot size, deflection distance and deflection direction are studied by numerical simulation, which explains the cause of ...
Botong Sun +5 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Frontiers in Materials, 2023 Electron beam selective melting (EBSM) has emerged as a promising technology for additive manufacturing (AM) of superalloys. In this study, a comprehensive multi-physics model is developed to analyze the molten pool flow behavior and influencing factors ...
Yihui Zhang +5 more
doaj +1 more source
InP nanocrystals on silicon for optoelectronic applications
, 2012 One of the solutions enabling performance progress, which can overcome the downsizing limit in silicon technology, is the integration of different functional optoelectronic devices within a single chip. Silicon with its indirect band gap has poor optical
Helm, Manfred +10 more
core +1 more source
Laser diode area melting for high speed additive manufacturing of metallic components [PDF]
, 2017 Additive manufacturing processes have been developed to a stage where they can now be routinely used to manufacture net-shape high-value components. Selective Laser Melting (SLM) comprises of either a single or multiple deflected high energy fibre laser ...
Boone, Nicholas +6 more
core +2 more sources
Advanced Engineering Materials, EarlyView.Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller +6 more
wiley +1 more source
Powder Bed Fusion via Machine Learning-Enabled Approaches
Complexity, 2023 Powder bed fusion (PBF) applies to various metallic materials used in the metal printing process of building a wide range of complex parts compared to other AM technologies.
Utkarsh Chadha +14 more
doaj +1 more source