Structure and Residual Stresses in the AMg6 Alloy after Laser Shock Processing

The microstructure and distribution of residual stresses in the AMg6 alloy after laser shock treatment in the power density range of 1.3–6 GW/cm 2 have been studied. Using X-ray structural analysis, it has been found that, after laser exposure, the size of the coherent scattering regions (CSR) decre...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic materials : applied research 2021, Vol.12 (1), p.55-60
Main Authors: Bakulin, I. A., Kakovkina, N. G., Kuznetsov, S. I., Panin, A. S., Tarasova, E. Yu
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Coherent scattering
Compressive properties
Dislocation density
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Laser shock processing
Lasers
Materials Science
Residual stress
Stress concentration
Structural analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The microstructure and distribution of residual stresses in the AMg6 alloy after laser shock treatment in the power density range of 1.3–6 GW/cm 2 have been studied. Using X-ray structural analysis, it has been found that, after laser exposure, the size of the coherent scattering regions (CSR) decreases to 60 nm, the value of microstrains increases to 0.0018, and the average dislocation density increases from 6.6 × 10 13 to 3.7 × 10 14 m –2 . Laser shock treatment forms residual compressive stresses to a depth of 1 mm, reaching –128 MPa on the surface of the material.
ISSN:2075-1133
2075-115X
DOI:10.1134/S2075113321010032