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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Petrov, R. H. | Madrid |
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Kočí, Jan | Prague |
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Ali, M. A. |
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Rančić, M. |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Nenchev, B.
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article
Tracking Primary Dendritic Arm Evolution through Single Crystal CMSX-10® Ni-Base Superalloy
Abstract
<jats:title>Abstract</jats:title><jats:p>A novel packing pattern and local primary dendrite arm spacing (PDAS) algorithm, Shape-Limited Primary Spacing (SLPS), is applied to single crystal CMSX-10® Ni-base superalloy. The characterisation technique is rapid, repeatable and comparable, enabling the standardisation of single crystal microstructure analysis. It is deduced, that the increase in local PDAS range observed within the last to solidify sections of the CMSX-10® sample used this study, is due to lateral macrosegregation. SLPS enables quantification of the influence of the processing parameters on resultant packing patterns and local PDAS distribution. Through refinement of local PDAS, deleterious non-hexagonal pattern formation can be reduced. SLPS permits the optimisation of single crystal microstructure and the development of superior quality components.</jats:p>