The microstructural and crystallographic features of the surface deformation layer in Al-Zn-Mg-Cu alloy induced by milling were investigated by means of transmission electron microscopy (TEM) and precession electron diffraction (PED) assisted nanoscale orientation mapping. The result shows that the surface deformation layer is composed by the top surface of equiaxed nanograins/ultrafine grains and the subsurface of lamellar nanograins/ultrafine grains surrounded by coarse grain boundary precipitates (GBPs). The recrystallized nanograins/ultrafine grains in the deformation layer show direct evidence that dynamic recrystallization plays an important role in grain refining process. The GBPs and grain interior precipitates (GIPs) show a great difference in size and density with the matrix due to the thermally and mechanically induced precipitate redistribution. The crystallographic texture of the surface deformation layer is proved to be a mixture of approximate copper{112}<111>, rotated cube{001}<110> and F {111}<112>. The severe shear deformation of the surface induced by milling is responsible for the texture evolution.


    Access

    Download


    Export, share and cite



    Title :

    Microstructure and Texture in Surface Deformation Layer of Al-Zn-Mg-Cu Alloy Processed by Milling


    Contributors:
    CHEN Yanxia (author) / YANG Yanqing (author)


    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Effect of High-Speed Milling Parameters on Surface Metamorphic Layer of TC17 Titanium Alloy

    TAN Liang / ZHANG Dinghua / YAO Changfeng | DOAJ | 2017

    Free access

    Surface Texture and Microstructure Extraction from Multiple Aerial Images

    Wang, X. / Hanson, A. R. | British Library Online Contents | 2001


    Deformation and Texture Behaviors of Al-3mass%Mg Alloy at High Temperatures

    Fukutomi, Hiroshi / Okayasu, Kazuto | SAE Technical Papers | 2003


    Relationship between Microstructure and Deformation Behavior of Fe~3Al Alloy

    Ho Chul Jung / Chan Ro Park / Kim, Y.-S. et al. | British Library Conference Proceedings | 1993


    Effect of Milling Technology on Selected Surface Layer Properties

    Klonica, Mariusz / Matuszak, Jakub / Zagorski, Ireneusz | IEEE | 2019