Systematic and objective identification of the microstructure around damage directly from images. (1st March 2016)

• Record Type: Journal Article
• Authors: de Geus, T.W.J.; Du, C.; Hoefnagels, J.P.M.; Peerlings, R.H.J.; Geers, M.G.D.
• Is Part Of: Scripta materialia. Volume 113(2016)
• Page Start: 101
• Page End: 105
• Publication Date: 2016-03-01
• Subjects: Microstructure -- Morphology -- Damage -- Multi-phase materials -- Image processing; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.10.007
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: An original experimental approach is presented to automatically determine the average phase distribution around damage sites in multi-phase materials. An objective measure is found to be the average intensity around damage sites, calculated using many images. This method has the following benefits: no phase identification or manual interventions are required, and statistical fluctuations and measurement noise are effectively averaged. The method is demonstrated for dual-phase steel, revealing subtle unexpected differences in the morphology surrounding damage in strongly and weakly banded microstructures. Graphical abstract: