Effect of microstructure on corrosion of friction stir welded 304 stainless steel
- Park S.H.C. ,
- Sato Y.S. ,
- Kokawa H. ,
- et al
- Park S.H.C. ,
- Sato Y.S. ,
- Kokawa H. ,
- Okamoto K. ,
- Hirano S. and
- Inagaki M.
Links
Repository
Description
An investigation is presented into bead-on-plate friction stir welding of type 304 austenitic stainless steel (18.1%Cr, 8.56%Ni) and the relationship between corrosion properties and weld microstructure. Microstructural observations were performed by optical microscopy, TEM and orientation imaging microscopy, and corrosion resistance was determined by ferric sulphate-sulphuric acid and electrochemical potentiokinetic reactivation tests. Microstructural characteristics of the parent material, HAZ, stir zone and advancing side of the stir zone were analysed. Other issues discussed include HAZ sensitisation, intergranular corrosion in the HAZ, and the effect of sigma phase formation in grain boundaries on corrosion resistance.
5th International Symposium, 14-16 Sep 2004, Session 7A: Steel, Paper 02
Related Records
