Friction stir welding of HSLA-65 steel for shipbuilding
- Konkol P.J. ,
- Mathers J.A. ,
- Johnson R. ,
- et al
- Konkol P.J. ,
- Mathers J.A. ,
- Johnson R. and
- Pickens J.R.
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The feasibility of friction stir welding (FSW) HSLA-65 steel (0.10%C, 1.4%Mn), which is being considered by the US Navy for ship structural applications, was assessed. Single-pass FSW was performed on 6.4 mm (0.25 in) plates and two-pass FSW was performed on 12.7 mm (0.5 in) plates. Friction welds were subjected to metallographic examination, salt spray corrosion testing, microhardness testing, and Charpy V-notch toughness testing. Transverse tensile, root bend and face bend tests were conducted. The welds had satisfactory tensile strength, ductility, toughness and hardness. There were no differences in the salt spray corrosion rates between the stir zone, HAZ and parent metal.
3rd International Symposium, 27-28 Sep 2001, Session 2: Non-Aluminium Alloys, Paper 04
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