A UNS S 32654 , A STAINLESS STEEL FOR CONDENSER TUBES
The new superaustenitic stainless steel UNS S32654 (Avesta Sheffield 654 SMO) is proposed for condenser tubes in desalination and power plants. A number of tests illustrating its corrosion resistance in a variety of chloride containing environments are being reviewed in terms of pitting, crevice corrosion and stress corrosion cracking. Relevant mechanical and physical properties are described. Health hazards and the impact on the environment are discussed as well as the cost benefits of using a stainless steel for this application.
TESTING FOR INITIATION OF THE CREVICE CORROSION OF WELDED STAINLESS STEELS IN NATURAL SEAWATER
The initiation properties of three highly alloyed, welded stainless steels were investigated using three laboratory test methods. The tests were performed in natural sea water and in 3% NaCl.
SR topography of plastically deformed Fe-Si bicrystals - observation in situ and post mortem
SR reflection topography was applied to study the interaction of slip dislocations with the grain boundaries in Fe-4at%Si bicrystals deformed by compression. Three experimental settings with either a white or monochromatic beam were used and the corresponding orientation contrast analysed. Dislocation transmission through the grain boundary was observed in bicrystals with favourable geometry of the slip systems.