Laser Cladding with Preplaced Powder: Analysis of Thermal Cycling and Dilution Effects
Source abstract
Abstract
A theoretical model has been developed which analyses thermal cycling during the laser cladding process. The preplaced powder cladding method investigated involves scanning a defocused or rastered laser beam over a powder bed which is subsequently melted and welds to the underlying substrate. Previous practical work has shown that minimal dilution effects can be observed over a very large range of processing parameters. Theoretical modelling of the movement of the molten front has shown that after initial clad melt-substrate contact the melt recedes from the substrate and will only cross the cladding/substrate interface again under extreme conditions of input energy and laser-material interaction time.
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Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · High Entropy Alloys Studies · Intermetallics and Advanced Alloy Properties
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Affiliations
Institute of Polymer Technology and Materials Engineering, Loughborough University of Technology/Laser Expertise Ltd, Nottingham.
Department of Mechanical Engineering, Loughborough University of Technology.
Department of Mechanical Engineering, University of Liverpool.
References (8)
Show source-provided references
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