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Nanoscale Hardening Precipitiation in AlMgSi Alloys: A Transmission Electron Microscopy and Small‐Angle Neutron Scattering Study
Author(s) -
Donnadieu P.,
Carsughi F.,
Redjaimia A.,
Diot C.,
Lapasset G.
Publication year - 1998
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s002188989701011x
Subject(s) - materials science , transmission electron microscopy , small angle neutron scattering , lath , precipitation hardening , crystallography , alloy , neutron scattering , precipitation , hardening (computing) , scattering , nanoscopic scale , microstructure , composite material , martensite , optics , nanotechnology , chemistry , physics , layer (electronics) , meteorology
Transmission electron microscopy (TEM) and small‐angle neutron scattering (SANS) have been used to study hardening precipitation in a 6056 Al–Mg–Cu–Si alloy at peak ageing. TEM observations revealed that the precipitates adopt rod and lath morphologies. A TEM image analysis, using group‐symmetry properties, revealed that the precipitates belong to the orthorhombic (2/ m 2/ m 2/ m ) point group. The SANS data analysis, based on a log‐normal model, yields the distribution and mean size of the rod precipitates.