Anti-friction coating
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United States of America Patent
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Jul 7, 2015
Grant Date -
Jun 16, 2011
app pub date -
Dec 9, 2010
filing date -
Dec 10, 2009
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Abstract
The invention relates to an anti-friction coating (4) for a multi-layered friction bearing (1) made from a tin-based alloy which, in addition to tin, contains at least one element from the group comprising antimony and copper as the main alloying element, optionally lead and/or bismuth, and unavoidable impurities originating from the elements during the manufacturing process, and the proportion of antimony is at most 20% by weight, the proportion of copper is at most 10% by weight and the total proportion of lead and bismuth is at most 1.5% by weight and the total proportion of copper and antimony is between 2% by weight and 22% by weight, and tin is present in the form of inter-metallic phases and as a tin phase with beta-tin grains, and the beta-tin grains in the tin-based alloy have at least one preferred orientation, and an orientation index M{hkl} based on the formula
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