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Dislocation–grain boundary interactions: recent advances on the underlying mechanisms studied via nanoindentation testing

Javaid, Farhan ; Pouriayevali, Habib ; Durst, Karsten (2021)
Dislocation–grain boundary interactions: recent advances on the underlying mechanisms studied via nanoindentation testing.
In: Journal of Materials Research, 36 (12)
doi: 10.1557/s43578-020-00096-z
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

To comprehend the mechanical behavior of a polycrystalline material, an in-depth analysis of individual grain boundary (GB) and dislocation interactions is of prime importance. In the past decade, nanoindentation emerged as a powerful tool to study the local mechanical response in the vicinity of the GB. The improved instrumentation and test protocols allow to capture various GB–dislocation interactions during the nanoindentation in the form of strain bursts on the load–displacement curve. Moreover, the interaction of the plastic zone with the GB provides important insight into the dislocation transmission effects of distinct grain boundaries. Of great importance for the analysis and interpretation of the observed effects are microstructural investigations and computational approaches. This review paper focused on recent advances in the dislocation–GB interactions and underlying mechanisms studied via nanoindentation, which includes GB pop-in phenomenon, localized grain movement under ambient conditions, and an analysis of the slip transfer mechanism using theoretical treatments and simulations.

Typ des Eintrags: Artikel
Erschienen: 2021
Autor(en): Javaid, Farhan ; Pouriayevali, Habib ; Durst, Karsten
Art des Eintrags: Bibliographie
Titel: Dislocation–grain boundary interactions: recent advances on the underlying mechanisms studied via nanoindentation testing
Sprache: Englisch
Publikationsjahr: 2021
Ort: Berlin
Verlag: Springer International Publishing
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Materials Research
Jahrgang/Volume einer Zeitschrift: 36
(Heft-)Nummer: 12
DOI: 10.1557/s43578-020-00096-z
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Kurzbeschreibung (Abstract):

To comprehend the mechanical behavior of a polycrystalline material, an in-depth analysis of individual grain boundary (GB) and dislocation interactions is of prime importance. In the past decade, nanoindentation emerged as a powerful tool to study the local mechanical response in the vicinity of the GB. The improved instrumentation and test protocols allow to capture various GB–dislocation interactions during the nanoindentation in the form of strain bursts on the load–displacement curve. Moreover, the interaction of the plastic zone with the GB provides important insight into the dislocation transmission effects of distinct grain boundaries. Of great importance for the analysis and interpretation of the observed effects are microstructural investigations and computational approaches. This review paper focused on recent advances in the dislocation–GB interactions and underlying mechanisms studied via nanoindentation, which includes GB pop-in phenomenon, localized grain movement under ambient conditions, and an analysis of the slip transfer mechanism using theoretical treatments and simulations.

Freie Schlagworte: Dislocations, Grain boundaries, Hardness, Nano-indentation, Simulation
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 530 Physik
500 Naturwissenschaften und Mathematik > 540 Chemie
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde
Hinterlegungsdatum: 25 Sep 2024 08:48
Letzte Änderung: 25 Sep 2024 08:48
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