melt pool
Effect of Penetrations on the Lower Head Vessel Failure under Coupled Melt Pool Convection and Creep (F342)
... The LHF tests were performed with different types of heating distributions, viz, uniform, edge-peaked and hot spot and the results pertaining to time of failure, location of failure site and the overall strain at failure ...
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Investigating the melt pool properties and thermal effects of multi-laser diode area melting
... conditions. Melt-pool dimensions and thermal evolution with high corre- lation with published experimental results validated the modelling approach ...inter-layer melt disruption reported in ...
15
Beyond the Toolpath: Site-Specific Melt Pool Size
... of two beads per layer, and the step changes commanded the melt pool size 25% higher than nominal. 173[r] ...
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Probabilistic Modelling of Microstructural Evolution in Zr Based Bulk Metallic Glass Matrix Composites during Solidification in Additive Manufacturing
... (liquid melt pool formation as a result of laser—matter interaction and its evolution—solidification) coupled with mass transfer (nucleation and growth (solute diffusion [22] and capillary action driven)) ...
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Solidification Structure and Casting Defects in High Speed Twin Roll Cast Al 2 mass% Si Alloy Strip
... constant melt height level in the nozzle. Gradually running out of the melt, the melt pool level in the nozzle decreases and thus the strip thickness decreases ...
8
Effects of Scan Strategy on Thermal Properties and Temperature Field in Selective Laser Melting
... To validate the proposed model, experimental values are used from the work of Yadroitsev [19]. The build parts’ material is stainless steel grade 316L. The parts are made using selective laser melting (SLM) process. The ...
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Effect of Laser Power on Surface Finish during Laser Metal Deposition Process
... a melt pool on the substrate and then the Ti6Al4V powder was then delivered into the melt pool through the coaxial powder nozzles attached to the ...
5
Analysis of coaxial laser micro cladding processing conditions
... The laser build-up cladding is a well-known technique for repair, coatings and additive manufacturing tasks. Modern equipment for the laser cladding enables material to be deposited with the lateral resolution of about ...
5
3D Thermal Model of Laser Surface Glazing for H13 Tool Steel
... Laser surface glazing (LSG) is one of the surface treatment process to improve hardness, fatigue strength, wear resistance and corrosion resistance of engineering parts. After LSG treatment thin amorphous or semi ...
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Modelling and Simulation of Solidification Phenomena during Additive Manufacturing of Bulk Metallic Glass Matrix Composites (BMGMC)—A Brief Review and Introduction of Technique
... Despite their recent popularity and emblem to be exploited as potential struc- tural engineering material for extreme applications, still, an in-depth under- standing of underlaying mechanisms responsible for formation ...
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Aluminide Coating on Niobium by Arc Surface Alloying
... to melt an aluminum plate placed on a niobium block, the niobium surface was also melted and a melt pool of an Al–Nb binary alloy was formed on the niobium ...The melt pool solidified ...
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Laser cladding with metallic powders
... the melt pool, which allows the catchment of the powder particles injected ...the melt pool dimension relative to the dimension of the impact area of the powder stream ...
133
Online Full Text
... the melt- pool results in low surface ...the melt-pool to be smaller and results in rapid cooling of the melt pool which could cause cracking of the surface of the deposit ...
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Results of the LIVE-L2 Experiment on Melt Behaviour in RPV Lower Head Performed Within the LACOMERA Project at the Forschungszentrum Karlsruhe
... the melt as homogeneously as ...the melt pool, the heating system has six heating planes at different elevations with a distance of about 45 ...the melt, each plane can be controlled ...
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Heat Source Modeling in Selective Laser Melting
... predicted and measured melt pool depth and width for steady state point heat source (HS), transient. 391[r] ...
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Nano hardness and microstructure of selective laser melted AlSi10Mg scan tracks
... The melt pool of a selective laser melted AlSi10Mg scan track was found to be conical as shown in Figure ...the melt pools of scan tracks from other SLM candidate materials such as titanium alloys ...
7
Thermal near infrared monitoring system for electron beam melting with emissivity tracking
... The thermal image in Fig. 7 was captured early in the melting phase. The parts in this image are small (25 x 25 mm) ‘T’ shaped parts, aligned in five columns on the bed. In the time between the end of the melting phase of ...
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Preparation of metal powders from silver melt for 3D printing by melt dispersion method
... Dispersion of molten metal by high-pressure water jet eliminates the formation of gas pores and obtain a powder particle shape close to spherical, due to the action of surface tension forces. Previous studies [6, 11, 12] ...
6
Nucleation and Growth in Undercooled Melts of Bulk Metallic Glass Forming Zr60Ni25Al15 Alloy
... When the moving velocity of the isothermal plane at the glass transition temperature is sufficiently higher than the growth velocity of the crystalline phase, the isothermal plane, which is regarded as the growing ...
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Processing and Characterisation of Various Polymer Blends to Develop Implant for Tissue Engineering Applications
... The adaptability of hot-melt extrusion (HME) has led the technology to gain wide acceptance in the broad spectrum of manufacturing operations and pharmaceutical research developments. HME has been demonstrated as ...
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