Back to Search Start Over

Surface and internal structural markers for studying grain boundary sliding and grain rotation.

Authors :
Yakovtseva, Olga
Tomas, Alexis
Mikhaylovskaya, Anastasia
Source :
Materials Letters. Jun2020, Vol. 268, pN.PAG-N.PAG. 1p.
Publication Year :
2020

Abstract

• Comparison of grain boundary sliding effect on surface and body of the samples. • Development of internal markers located in grain body before superplastic deformation. • Decreased grain boundary sliding in AA5083 alloy as compared to AA7475 alloy. The grain boundary sliding as a main mechanism of superplastic deformation is typically studying by the microstructural analysis of the samples with surface markers. It is important to compare the effects related to the deformation mechanisms on the surface and in the body of the samples. Present study investigates the microstructural evolution of the samples of Al-Zn-Mg-Cu (AA7574) and Al-Mg-Mn (AA5083) alloys with both surface FIB-grids and internal Al 3 Ni-particles markers at superplastic deformation. The grain switching and grain rotation effects are found on the surface and in the body of both the studied alloys. The results, based on both surface and internal markers, suggest the decreased role of the grain boundary sliding in AA5083 alloy as compare with AA7475 alloy. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0167577X
Volume :
268
Database :
Academic Search Index
Journal :
Materials Letters
Publication Type :
Academic Journal
Accession number :
142423892
Full Text :
https://doi.org/10.1016/j.matlet.2020.127569