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Characterization of the Microstructure after Composite Peening of Aluminum
Author(s) -
Seitz Michael,
Dürrschnabel Michael,
Kauffmann Alexander,
Kurpiers Chantal,
Greiner Christian,
Weidenmann Kay André
Publication year - 2021
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.202000575
Subject(s) - materials science , microstructure , ceramic , composite number , peening , nanocrystalline material , scanning electron microscope , transmission electron microscopy , shot peening , metallurgy , composite material , residual stress , nanotechnology
Composite peening is a novel process to introduce ceramic blasting particles into the surface of substrates. Depending on the process parameters, the penetration depth of the blasting particles can be several micrometers. In previous investigations by some of the authors, it has been found that the ceramic particles incorporated during composite peening are significantly smaller compared to 10 μm in size before peening. Herein, the microstructure after composite peening is highlighted. To investigate this microstructure, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are performed. The subsequent X‐ray diffraction (XRD) analysis provides further evidence of a severely deformed, nanocrystalline ceramic layer consisting of fragmented blasting particles.