Studies on characteristics of friction stir welded joints in structural aluminum alloys: Part 4 - fatigue properties of friction stir welded joints
- Kamioka M. ,
- Okubo K. and
- Namba K.
- Kamioka M. ,
- Okubo K. and
- Namba K.
Repository
Description
An investigation is presented into the fatigue properties of welded joints in various structural aluminium alloys prepared by friction stir welding (FSW) and the results are compared with those measured on MIG welded joints. The experimental specimens comprised sheets (thickness 3 mm) of 5083-O (Al, 4.6%Mg), 6N01-T5 (6005C: Al, 0.5-0.69%Mg, 0.55-0.8%Si) and 7N01-T5 (7204: Al, 4.48-4.56%Zn, 1.07-1.25%Mg, 0.4-0.64%Mn) alloys. FSW was performed in a butt joint geometry under different process conditions. Room temperature fatigue tests were conducted at a frequency of 20 Hz and the results were used to calculate values of fatigue strength and stress concentration factor. Additionally, measurements were undertaken to determine fracture locations, hardness distribution and surface roughness.
6th International Symposium, 10-13 Oct 2006, Session 12B: MMC's Properties, Paper 01
Subjects
- Friction welding
- Welding
- Process
- Friction stir welding
- Aluminium and Al alloys
- Nonferrous
- Material
- 5xxx Al series
- 6xxx Al series
- 7xxx Al series
- Microstructure
- Process conditions
- Fracture
- Strength
- Mechanical properties
- Properties
- Fatigue strength
- Hardness
- Arc welding
- MIG/MAG welding
- Weld zone
- Weld
- HAZ
- Dynamically recrystallised zone
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