Investigation Into Corrosion Resistance Behaviour of Some High Stainless Alloys in R.O. Seawater Desalination Conditions - A Comparative Study

[摘要] Desalination of seawater (SW) by Reverse Osmosis are expected to be the common way for desalination throughout the world on the future due to their simplisity and cost compared with the Multi Stage Flash (M.S.F.) plants . Alot of work was done and in progress to improve there effeceincy and reliability. One of the most problem in such technology is the corrosion of the materials selected on the different parts of the R.O. plants. On this thesis, most of the corrodent factores that may affect the corrosion process were considered and applied on six defferent high stainless alloys available commericially. Flow of the corrodent and Jet effect were also invistigated on this work. Titanium considered to be the best alloy can resist the corrosion, hence the other five alloys were compared with it. It can be seen that Hastelloy-C [15-20%Cr, Bal. Ni, 16-20%Mo] and SMO-245[19.8%Cr, 17.7%Ni, 5.6%Mo] showed good corrosion resistance under RO SW desalination conditions. Alloy 14529[19-21%Cr, 24-26%Ni, 6-7 %Mo] manufactured by INCO also showed good corrosion resistance under the above conditions but once the temperature rise to 45

[发布机构] University:University of Glasgow

[关键词] Mechanical engineering, Civil engineering