Influence of Corrosive Conditions on the Mechanical Performance of Flow Drill Screw Joints between Light Metals

Carmen S. Scholz; Gundolf Kopp; Horst E. Friedrich

doi:10.4028/www.scientific.net/MSF.879.1725

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HomeMaterials Science ForumMaterials Science Forum Vol. 879Influence of Corrosive Conditions on the...

Influence of Corrosive Conditions on the Mechanical Performance of Flow Drill Screw Joints between Light Metals

Abstract:

In this paper, the influence of corrosive conditions on the mechanical performance of Flow Drill Screw (FDS) joints is investigated in greater detail. Different combinations of light metals such as aluminium or magnesium alloys and high strength/stainless steel served as the test material. The joint strength of FDS joints, under quasi-static and cyclic loading, was measured before and after six weeks’ of corrosion climate change testing. Furthermore metallographic sections of the samples were compared in order to evaluate the stage of surface, galvanic and crevice corrosion. To classify the effect of progressing corrosion on the mechanical properties of FDS joints, the following factors are taken into account: corrosion resistance of the materials, joining parameters and the geometry of the joint. For all material combinations there is an apparent change in both the fatigue strength and the failure behaviour after corrosion testing.

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Periodical:

Materials Science Forum (Volume 879)

Pages:

1725-1730

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.1725

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Cite this paper

Online since:

November 2016

Authors:

Carmen S. Scholz*, Gundolf Kopp, Horst E. Friedrich

Keywords:

Aluminum Alloy, Fatigue, Flow Drill Screw, Joining, Magnesium, Multi Material Design

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References

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