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Title: Corrosion behaviour of friction-bit-joined and weld-bonded AA7075-T6/galvannealed DP980

Journal Article · · Science and Technology of Welding and Joining
 [1]; ORCiD logo [2];  [1];  [2];  [3];  [1];  [1];  [1]
  1. Materials Science & Technology Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, TN, USA
  2. Manufacturing Engineering Technology, Brigham Young University, Provo, UT, USA
  3. Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN, USA

Joining of aluminium alloys 7075-T6 and galvannealed dual phase 980 steel was achieved by friction bit joining (FBJ) and weld-bonding (FBJ + adhesive) processes. Accelerated laboratory-scale corrosion tests were performed on both FBJ only and weld-bonded specimens to study joint strength under a corrosive environment. Static lap shear tests showed that both FBJ only and weld-bonded cases generally retained more than 80% of the joint strength of non-corroded specimens at the end of corrosion testing. The presence of Zn/Fe coating on the steel substrate resulted in improved corrosion resistance for FBJ specimens, compared to joints produced with bare steel. Finally, an optical microscopy was used for cross-sectional analysis of corroded specimens. Some corrosion on the joining bit was observed near the bit head. However, the joining bit was still intact on the steel substrate, indicating that the primary bond was sound.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2281412
Alternate ID(s):
OSTI ID: 1360014
Journal Information:
Science and Technology of Welding and Joining, Journal Name: Science and Technology of Welding and Joining Vol. 22 Journal Issue: 6; ISSN 1362-1718
Publisher:
SAGE PublicationsCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

References (35)

Innovative and Highly Productive Joining Technologies for Multi-Material Lightweight Car Body Structures journal April 2014
Spot welding of aluminum and cast iron by friction bit joining journal June 2013
Influence of resistance heating on self-piercing riveted dissimilar joints of AA6061-T6 and galvanized DP590 journal October 2014
Electrochemical, chemical and morphological characterization of galvannealed steel coating journal May 2007
A Study on Corrosion Behavior of DP-Type and TRIP-Type Cold Rolled Steel Sheet journal January 2009
Friction-stir dissimilar welding of aluminium alloy to high strength steels: Mechanical properties and their relation to microstructure journal October 2012
Mechanical and corrosion behavior of plain low carbon dual-phase steels journal January 2011
Evaluation of the corrosion behavior of galvannealed steel in chloride aqueous solution and in tropical marine environment journal December 2005
Metallographic preparation technique for hot-dip galvanized and galvannealed coatings on steel journal September 1993
Mechanical properties of dissimilar metal joints composed of DP 980 steel and AA 7075-T6 journal January 2015
Volvo Laboratory Study of Zinc-Coated Steel Sheet-Adhesive Bonding Properties conference February 1989
Friction Self-Piercing Riveting of Aluminum Alloy AA6061-T6 to Magnesium Alloy AZ31B journal November 2013
Lap-joint corrosion of automotive coated materials in chloride media. Part 2 – Galvannealed steel journal February 2000
Corrosion performance and mechanical properties of joined automotive materials journal January 2011
Solid state spot joining of sheet materials using consumable bit journal January 2009
Rapid intermetallic growth under high strain rate deformation during high power ultrasonic spot welding of aluminium to steel journal February 2015
Multimaterial car body design: challenge for welding and joining journal March 2006
Effect of process parameters on mechanical properties of friction stir spot welded magnesium to aluminum alloys journal February 2015
In-situ observation in a scanning electron microscope on the exfoliation behavior of galvannealed Zn–Fe coating layers journal April 2007
Effect of ultrasonic welding parameters on microstructure and mechanical properties of dissimilar joints journal March 2014
The metallurgy of zinc-coated steel journal June 2000
Corrosion Behavior of Mixed-Metal Joint of Magnesium to Mild Steel by Ultrasonic Spot Welding with and without Adhesives journal January 2013
Effect of welding conditions on corrosion behaviour of spot welded coated steel sheets journal February 2011
Microstructural Evolution of DP980 Steel during Friction Bit Joining journal October 2009
On texture, corrosion resistance and morphology of hot-dip galvanized zinc coatings journal June 2007
Ultrafine grained ferrite–martensite dual phase steels fabricated via equal channel angular pressing: Microstructure and tensile properties journal June 2005
Investigation of electrochemical corrosion behavior in a 3.5wt.% NaCl solution of boronized dual-phase steel journal April 2013
Potential and current distributions of one-dimensional galvanic corrosion systems journal February 2010
Dissimilar material laser welding between magnesium alloy AZ31B and aluminum alloy A5052-O journal January 2005
Galvanic corrosion of magnesium alloy AZ91D in contact with an aluminium alloy, steel and zinc journal April 2004
Dissimilar material joining using laser (aluminum to steel using zinc-based filler wire) journal April 2007
Spot joining of AA 5754 and high strength steel sheets by consumable bit journal May 2010
Study of mechanical joint strength of aluminum alloy 7075-T6 and dual phase steel 980 welded by friction bit joining and weld-bonding under corrosion medium journal March 2015
Joining of polymers and polymer-metal hybrid structures: Recent developments and trends journal August 2009
On the first breakdown in AA7075-T6 journal July 2007