Dynamic interactions between precipitation and plastic deformation in aluminium alloys

Alexis Deschamps, Frédéric De Geuser, Christopher R. Hutchinson, Seung Won Lee, Zen Ji Horita

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Dynamic interactions between plastic deformation and precipitation processes in Aluminium alloys can lead to large changes in precipitation kinetics as compared to conventional heat treatments. This can be due to a number of different mechanisms such as changes in vacancy concentrations or movement of structural defects. Understanding the underlying mechanisms requires a quantitative measurement of the precipitate evolution as a function of deformation conditions, temperature and time. The present contribution will review experimental results obtained by Small-Angle X-ray Scattering in three different configurations, all concerning Al-Zn-Mg-Cu alloys: first, dynamic precipitate evolution during plastic deformation at ageing temperature; second, dynamic precipitation during low cycle fatigue at room temperature; and third, precipitation during ageing of a material processed by room temperature high pressure torsion. The experimental evidence will be used to discuss the role of the different mechanisms of interaction with plasticity on the precipitate microstructure evolution.

    Original languageEnglish
    Title of host publicationAluminium Alloys, ICAA 2014
    EditorsKnut Marthinsen, Bjørn Holmedal, Yanjun Li
    PublisherTrans Tech Publications Ltd
    Pages1133-1140
    Number of pages8
    ISBN (Print)9783038351207
    DOIs
    Publication statusPublished - 2014
    Event14th International Conference on Aluminium Alloys, ICAA 2014 - Trondheim, Norway
    Duration: Jun 15 2014Jun 19 2014

    Publication series

    NameMaterials Science Forum
    Volume794-796
    ISSN (Print)0255-5476
    ISSN (Electronic)1662-9752

    Other

    Other14th International Conference on Aluminium Alloys, ICAA 2014
    CountryNorway
    CityTrondheim
    Period6/15/146/19/14

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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