Fracture Behavior of a Laser Beam Welded High-strength Al-Zn Alloy

Enz, J.; Iwan, H.; Riekehr, S.; Ventzke, V.; Kashaev, N.

Journalpaper

Fracture Behavior of a Laser Beam Welded High-strength Al-Zn Alloy

Abstract

Laser beam welding of butt joints made of the newly developed high-strength Al-Zn alloy PA734 is conducted. A new approach of the Helmholtz-Zentrum Geesthacht is used to solve the problems of weldability and softening. The results of the fatigue, fatigue crack propagation and fracture toughness tests are discussed relating to the microstructural characteristics and the mechanical properties of the laser welded joints and compared to the base material. The obtained data can be used for the assessment of the damage tolerance behaviour of the laser welded integral aircraft structures made of Al-Zn alloys.

DOI Link to Publication

URL: https://publications.hereon.de/id/32081/
Authors:Enz, J., Iwan, H., Riekehr, S., Ventzke, V., Kashaev, N.
Year:2014
In: Procedia Materials Science
Volume:3
Pages:1828 - 1833
Publisher:Elsevier
Type:Journalpaper
ISSN: 2211-8128
Cite as: Enz, J.; Iwan, H.; Riekehr, S.; Ventzke, V.; Kashaev, N.: Fracture Behavior of a Laser Beam Welded High-strength Al-Zn Alloy. In: Procedia Materials Science. Vol. 3 (2014) 1828 - 1833. (DOI: 10.1016/j.mspro.2014.06.295)