New methods for automatic quantification of microstructural features using digital image processing
Campbell, Andrew and Murray, Paul and Yakushina, Evgenia and Marshall, Stephen and Ion, William (2018) New methods for automatic quantification of microstructural features using digital image processing. Materials & Design, 141. pp. 395-406. ISSN 0264-1275 (https://doi.org/10.1016/j.matdes.2017.12.049)
Preview |
Text.
Filename: Campbell_etal_MD_2017_New_methods_for_automatic_quantification_of_microstructural.pdf
Final Published Version License: Download (1MB)| Preview |
Abstract
Thermal and mechanical processes alter the microstructure of materials, which determines their mechanical properties. This makes reliable microstructural analysis important to the design and manufacture of components. However, the analysis of complex microstructures, such as Ti6Al4V, is difficult and typically requires expert materials scientists to manually identify and measure microstructural features. This process is often slow, labour intensive and suffers from poor repeatability. This paper overcomes these challenges by proposing a new set of automated techniques for 2D microstructural analysis. Digital image processing algorithms are developed to isolate individual microstructural features, such as grains and alpha lath colonies. A segmentation of the image is produced, where regions represent grains and colonies, from which morphological features such as; grain size, volume fraction of globular alpha grains and alpha colony size can be measured. The proposed measurement techniques are shown to obtain similar results to existing manual methods while drastically improving speed and repeatability. The benefits of the proposed approach when measuring complex microstructures are demonstrated by comparing it with existing analysis software. Using a few parameter changes, the proposed techniques are effective on a variety of microstructure types and both SEM and optical microscopy images
ORCID iDs
Campbell, Andrew ORCID: https://orcid.org/0000-0002-4439-3630, Murray, Paul ORCID: https://orcid.org/0000-0002-6980-9276, Yakushina, Evgenia ORCID: https://orcid.org/0000-0001-6498-4502, Marshall, Stephen ORCID: https://orcid.org/0000-0001-7079-5628 and Ion, William ORCID: https://orcid.org/0000-0003-0693-5942;-
-
Item type: Article ID code: 62753 Dates: DateEvent5 March 2018Published27 December 2017Published Online26 December 2017AcceptedSubjects: Technology > Engineering (General). Civil engineering (General) > Engineering design Department: Faculty of Engineering > Design, Manufacture and Engineering Management
Faculty of Engineering > Electronic and Electrical Engineering
Technology and Innovation Centre > Sensors and Asset Management
Strategic Research Themes > Measurement Science and Enabling Technologies
Strategic Research Themes > Advanced Manufacturing and MaterialsDepositing user: Pure Administrator Date deposited: 09 Jan 2018 10:00 Last modified: 23 Sep 2024 14:49 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/62753