Deformation Accommodation at Triple Junctions in Columnar-Grained Nickel

Deformation Accommodation at Triple Junctions in Columnar-Grained Nickel

We study plastic deformation at triple junctions in columnar-grained nickel, where there is no out-of-plane grain constraint, under tension. In addition to orientation and slip trace analysis, we map surface topography and in-plane strains. Several local accommodation modes are observed, including t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2019, Vol.50 (1), p.52-57
Hauptverfasser: Li, Mingjie, Duquette, David J., Chen, Ying
Format: Artikel
Sprache:eng
Schlagworte:
Accommodation
Characterization and Evaluation of Materials
Chemistry and Materials Science
Communication
Crystals
Grain boundaries
Lattice vibration
Materials Science
Metallic Materials
Nanotechnology
Nickel
Plastic deformation
Rotation
Single crystals
Slip
Structural Materials
Surfaces and Interfaces
Thin Films
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We study plastic deformation at triple junctions in columnar-grained nickel, where there is no out-of-plane grain constraint, under tension. In addition to orientation and slip trace analysis, we map surface topography and in-plane strains. Several local accommodation modes are observed, including the activation of relatively compatible slip systems that deviate from single crystal responses, change in slip intensity, out-of-plane relative rotation between grains across grain boundaries, and changes in lattice rotation towards the triple junction.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-018-4998-0