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Cavltatlon erosion of NIT1 explosively welded Lo steel. (Conference Paper). Equiatomic and near-equiatomic N i l i alloys are much more resistant to cavitation erosion than w e n the best stainless steels used in hydraulic machiner. Since building large components entirely of NiTi is quite impractical, structural steel was explosively clad with thin layers of Nili and the cavitation-erosion behavior of Ni'li welded to steel was investigated. Martensitic N i l in the aswelded condition proved to be as resistant to cavitation as it was before it was weMed, and post-weld heat treatment diminished the resistance slightly. In contrast, austenitic NiTi was significantly less resistant to cavitation alter welding. A post-weld heat treatment of 500ยฐC restored most of the lost resistance, but heat treatment at 700ยฐC did not. Analysis of the results indicates that the deformation induced in NIT by cavity implosions are mostly in the reversible regime, i.e. very little damage acwmulates from each stress pulse. Comparisons to other erosionresistant materiak are also presented. Graphs, Photomicrographs. 19 ref.
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## International Corrosion Abstracts 253 requirements. These factors include water movement, composition and pH, galvanizing chemistry, pipe roughness and cleanliness and plumbing practice The influence of water conditions and flow rate on its reaction with galvanized coatings is traced. Corrosion