Reduced O&M Costs through Better Metallurgyby William Schumacher, Armco Inc, United States,
Document Type: Proceeding Paper
Part of: Waterpower '89
Abstract: There are many areas in hydroelectric power plants where better materials of construction can reduce operation and maintenance (O&M) costs. Some of the most nagging problems deal with wear and galling between metal-to-metal sliding surfaces like. Another very costly problem is cavitation erosion to pump impeller and turbine runner blades. Armco NITRONIC 60 is a nitrogen strengthened austenitic stainless steel with high levels of manganese and silicon in comparison to Type 304. Armco NITRONIC 60 has demonstrated the best combination of corrosion, wear, galling and cavitation resistance of all stainlesses tested. It has reduced maintenance costs and down time in such hydro components as: shaft sleeves, wear rings, bearing rods, bolting, valve trim and wicket gates.
Subject Headings: Hydro power | Power plants | Stainless steel | Construction materials | Maintenance | Cavitation | Construction costs | Erosion
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