CAUSE OF BEARING CORROSION IN TURBINES?. CORROSION of white‐metal bearings in marine steam turbines has been a problem for many years. It has taken the form of an attack on the tin matrix. Tin oxide, a very hard material, is a major component of the corrosion product. In some cases, this has formed to a depth of 10 to 15 mils and resulted in flaking with subsequent bearing failure. Similar, but much less severe, corrosion has been known to occur in land‐based turbines. A major problem in seeking the cause has been to reproduce in the laboratory similar corrosion to that arising in service.
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