On the statistical distribution of primary and secondary dendrite arm spacing in cast metals

Document Type

Article

Publication Date

3-4-2019

Abstract

Statistical distributions of dendrite arm spacing have not been addressed in the literature. Two histograms for primary dendrite arm spacing in a cast nickel-based superalloy, and four histograms from a chill cast 5182 aluminium alloy ingots for secondary dendrite arm spacing have been analysed. For all datasets, lognormal distribution provided excellent fits to the data. Moreover, the Lifshitz–Slyozov–Wagner distribution was found to have systematic error in the fits to the secondary arm spacing data.

Publication Title

Materials Science and Technology (United Kingdom)

Volume

35

Issue

4

First Page

509

Last Page

511

Digital Object Identifier (DOI)

10.1080/02670836.2018.1563982

ISSN

02670836

E-ISSN

17432847

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