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Skeletonisation to Find the Centre of Dendrites Traced from a 2D Microstructural Image

Miller, J. E. and Strangwood, M. and Steinbach, Sonja and Warnken, N. (2017) Skeletonisation to Find the Centre of Dendrites Traced from a 2D Microstructural Image. 6th Decennial International Conference on Solidification Processing, 25.-28. Juli 2017, Old Windsor, GB. ISBN 1908549297.

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Abstract

As three-dimensional analysis of dendritic microstructures (such as Ni-superalloys) has become more prevalent with the use of techniques such as Robomet, synchrotron and computerised tomography, there has been a greater need for accurate and efficient methods to characterise dendrites in three dimensions. One parameter which is needed for a variety of further calculations is the primary dendrite arm spacing. This parameter can be calculated by finding the distances between all of the centres of the dendrites on a single plane. However before this can be computed the locations of all these centres must be obtained. One technique which has often been used in the literature is the centre of geometry method, which simply determines the centre of gravity of each dendrite as seen in a micrograph. However, this method has some major drawbacks. For instance it can assign the centre outside of a dendrite, which often applies to irregular shaped dendrites. As a result another technique shall be presented using skeletonisation. It is shown here that this technique represents good improvement over the centre of geometry method; however it also has drawbacks in certain specific conditions. Combined use of all these methods however shows promise in the search for a reliable method to identify the centres of differently shaped dendrites.

Item URL in elib:https://elib.dlr.de/114081/
Document Type:Conference or Workshop Item (Speech)
Title:Skeletonisation to Find the Centre of Dendrites Traced from a 2D Microstructural Image
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Miller, J. E.university of birminghamUNSPECIFIED
Strangwood, M.university of birminghamUNSPECIFIED
Steinbach, Sonjasonja.steinbach (at) dlr.deUNSPECIFIED
Warnken, N.university of birminghamUNSPECIFIED
Date:1 July 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 239-242
Editors:
EditorsEmailEditor's ORCID iD
Fan, ZhongyunBCASTUNSPECIFIED
ISBN:1908549297
Status:Published
Keywords:Dendrite Centre, Skeletonisation, Image Analysis, Microscopy.
Event Title:6th Decennial International Conference on Solidification Processing
Event Location:Old Windsor, GB
Event Type:international Conference
Event Dates:25.-28. Juli 2017
Organizer:BCAST
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Materials Research and Microgravity (MuM)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Steinbach, Dr.rer.nat. Sonja
Deposited On:09 Oct 2017 07:29
Last Modified:09 Oct 2017 07:29

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  • Skeletonisation to Find the Centre of Dendrites Traced from a 2D Microstructural Image. (deposited 09 Oct 2017 07:29) [Currently Displayed]

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