Triple junction motion - A new recovery mechanism in metals deformed to large strains

Tianbo Yu, Niels Hansen, Xiaoxu Huang

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    A phenomenologically new recovery mechanism - triple junction motion is presented. This recovery mechanism is found to be the dominant one at low and medium temperatures in highly strained aluminum, which has a very fine microstructure, composed of lamellae with the thickness of a few hundred nanometers. Triple junction motion leads to removal of thin lamellae and to a consequent increase of the thickness of neighboring lamellae. This recovery mechanism therefore increases the average lamellar boundary spacing and causes a gradual transition from a lamellar structure to a more equiaxed structure preceding recrystallization. © (2013) Trans Tech Publications, Switzerland.
    Original languageEnglish
    JournalMaterials Science Forum
    Volume753
    Pages (from-to)485-488
    ISSN0255-5476
    DOIs
    Publication statusPublished - 2013
    Event5th International Conference on Recrystallization and Grain Growth - Sydney, Australia
    Duration: 5 May 201310 May 2013

    Conference

    Conference5th International Conference on Recrystallization and Grain Growth
    Country/TerritoryAustralia
    CitySydney
    Period05/05/201310/05/2013

    Keywords

    • Grain growth
    • Recovery
    • Recrystallization (metallurgy)
    • Lamellar structures
    • Triple junction motion
    • Deformation microstructure
    • Lamellar boundary

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