Fatigue behaviour of welded joints from magnesium alloy (AZ31) according to the local strain concept

Fatigue behaviour of welded joints from magnesium alloy (AZ31) according to the local strain concept

In the present study, the results of fatigue tests with the magnesium alloy AZ31 (ISO‐MgAl3Zn1) in the material states base metal, heat affected zone and weld metal obtained under strain control at room temperature within a range from 2·102 to 5·106 cycles are presented. The fatigue behaviour was ch...

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Veröffentlicht in:Materialwissenschaft und Werkstofftechnik 2010-02, Vol.41 (2), p.73-82
Hauptverfasser: Karakas, Ö., Gülsöz, A., Kaufmann, H., Sonsino, C. M.
Format: Artikel
Sprache:eng
Schlagworte:
Dehnung
Ermüdung
fatigue
Magnesium alloy
Magnesiumlegierung
Schweißen
Spannung
strain
stress
welding
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Beschreibung
Zusammenfassung:In the present study, the results of fatigue tests with the magnesium alloy AZ31 (ISO‐MgAl3Zn1) in the material states base metal, heat affected zone and weld metal obtained under strain control at room temperature within a range from 2·102 to 5·106 cycles are presented. The fatigue behaviour was characterized by the Coffin–Manson–Basquin equations and the stress – strain behaviour by the Ramberg–Osgood equation. The data can be used to assess welded magnesium joints according to the local strain concept.
ISSN:0933-5137
1521-4052
DOI:10.1002/mawe.200900543