# In-depth quantitative analysis of the microstructures produced by Surface Mechanical Attrition Treatment (SMAT)

Abstract : Electron BackScattered Diffraction (EBSD) maps are used to characterize quantitatively the graded microstructure formed by Surface Mechanical Attrition Treatment (SMAT) and applied here to the 316L stainless steel. In particular, the analysis of GNDs - coupled with relevant and reliable criteria - was used to depict the thickness of each zone identified in the SMAT-affected layers: (i) the ultrafine grain'' (UFG) zone present at the extreme top surface, (ii), the transition zone'' where grains were fragmented under the heavy plastic deformation and, finally, (iii) the deformed zone'' where initial grains are simply deformed. The interest of this procedure is illustrated through the comparative analysis of the effect of some SMAT processing parameters (amplitude of vibration and treatment duration). The UFG and transition zones are more significantly modified than the overall affected thickness under our tested conditions.
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Article dans une revue
Materials Characterization, Elsevier, 2013, 83, pp.129-138. 〈10.1016/j.matchar.2013.06.006〉
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https://hal.univ-lorraine.fr/hal-01501658
Contributeur : Lem3 Ul <>
Soumis le : mardi 4 avril 2017 - 14:42:34
Dernière modification le : jeudi 11 janvier 2018 - 06:23:43

### Citation

Youssef Samih, Benoit Beausir, Bernard Bolle, Thierry Grosdidier. In-depth quantitative analysis of the microstructures produced by Surface Mechanical Attrition Treatment (SMAT). Materials Characterization, Elsevier, 2013, 83, pp.129-138. 〈10.1016/j.matchar.2013.06.006〉. 〈hal-01501658〉

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