Microstructure and Residual Stresses in Dissimilar Mg-Al-Zn-Alloy Single Overlap Laser Beam Welds

R.S. Coelho; A. Kostka; Haroldo Pinto; Stefan Riekehr; Mustafa Koçak; Anke Pyzalla

doi:10.4028/www.scientific.net/MSF.571-572.361

Paper Titles

Distribution of Residual Stresses in EB-PVD Thermal Barrier Coatings
p.333

In Situ Synchrotron Measurement of Internal Stresses in Solid-Oxide Fuel Cell during Red-Ox Cycle
p.339

Study of Microstructure and Residual Stresses in Dissimilar Al/Steels Welds Produced by Cold Metal Transfer
p.347

Analysis of Residual Stress in Laser Welded Aerospace Aluminium T-Joints by Neutron Diffraction and Finite Element Modelling
p.355

Microstructure and Residual Stresses in Dissimilar Mg-Al-Zn-Alloy Single Overlap Laser Beam Welds
p.361

Study of Residual Stress Distribution in a Stainless Steel Bead-on-Plate Simulation Benchmark Sample
p.367

Influence of the Welding Sequence on Residual Stresses in Laser Welded T-Joints of an Airframe Aluminium Alloy
p.375

Residual Stress Analyses by Neutron Diffraction in Irradiated Double-V Butt Welded Steel Plates
p.381

Residual Stresses in High Strength, Thick Section Steel Welds
p.387

HomeMaterials Science ForumMaterials Science Forum Vols. 571-572Microstructure and Residual Stresses in Dissimilar...

Microstructure and Residual Stresses in Dissimilar Mg-Al-Zn-Alloy Single Overlap Laser Beam Welds

Abstract:

Microstructure, hardness and residual stresses of the laser beam overlap welds between AZ31B sheets and AZ31, AZ61 and AZ80 extruded profiles are investigated using microscopy and X-ray diffraction. The result of the investigations reveal that weld microstructure, the size of the HAZ, precipitate density and the maximum compressive residual stress values depend strongly on the Al content of the weld zone of two Mg-alloys.