Coating for portions of a part of martensitic steel that rub in rotation
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United States of America Patent
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Sep 12, 1995
Grant Date -
N/A
app pub date -
Oct 8, 1993
filing date -
Oct 9, 1992
priority date (Note) -
Expired
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Abstract
A surface coating (6) on martensitic steel for portions that rub by rotation is characterized in that it comprises a matrix (9) of NiMo in which grains of Cr.sub.3 C.sub.2 are embedded, 90% of which by weight are constituted by grains (8) in the range 10 .mu.m to 30 .mu.m. The coating has a low coefficient of friction and good adhesion.
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