Published August 26, 2015 | Version v1
Journal article Metadata-only

The microstructural evolution of friction stir welded AA6082-T6 aluminum alloy during cyclic deformation

Creators

  • 1. Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43721 (Egypt)
  • 2. Centre for Advanced Steels Research, University of Oulu, P.O. Box 4200, FI-90014 Oulu (Finland)
  • 3. Oulu Southern Institute, University of Oulu, Pajatie 5, FI-85500 Nivala (Finland)
  • 4. Department of Materials Science and Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD (United Kingdom)

Description

The fatigue behavior of a thick section friction stir welded AA6082-T6 aluminum alloy was studied to compare damage mechanisms in the weld zone and the base metal. Fully reversed tension–compression strain-controlled fatigue tests were conducted to determine the cyclic stress response and stored energy to failure. Microstructure evolution during cyclic straining was followed using secondary electron imaging and electron backscatter diffraction in a scanning electron microscope. Fatigue cracking along grain boundaries and the formation of slip bands were observed to be the fatigue-induced microstructural features in the friction-stir-welded structure. In the base metal, micron-sized particles led to particle-induced cracking

Availability note (English)

Available from http://dx.doi.org/10.1016/j.msea.2015.06.100

Additional details

Identifiers

DOI
10.1016/j.msea.2015.06.100;
PII
S0921-5093(15)30124-6;

Publishing Information

Journal Title
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Journal Volume
642
Journal Page Range
p. 366-376
ISSN
0921-5093
CODEN
MSAPE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47049307
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM ALLOYS; ALUMINIUM BASE ALLOYS; DEFORMATION; FAILURES; FATIGUE; FRICTION; GRAIN BOUNDARIES; MECHANICAL TESTS; PARTICLES; SCANNING ELECTRON MICROSCOPY; SLIP; STRAINS; STRESSES; WELDED JOINTS; WELDING
Descriptors DEC
ALLOYS; ALUMINIUM ALLOYS; ELECTRON MICROSCOPY; FABRICATION; JOINING; JOINTS; MATERIALS TESTING; MECHANICAL PROPERTIES; MICROSCOPY; MICROSTRUCTURE; TESTING

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.