Wear-resistant coating and component
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United States of America Patent
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Sep 11, 2001
Grant Date -
N/A
app pub date -
Jul 1, 1998
filing date -
Jul 1, 1998
priority date (Note) -
Expired
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Abstract
A wear-resistant component comprises a workpiece having a coating comprising at least one crystalline layer comprising metal boride and at least one amorphous layer comprising metal and boron. The amorphous layer can further comprise one or more of carbon, nitrogen, halogen, or hydrogen. Preferably, the coating comprises a plurality of composite layers, each composite layer comprises a crystalline titanium diboride layer and an amorphous layer comprising metal and boron. The wear-resistant component has a wear rate of 3.5.times.10.sup.-6 mm.sup.3 /nm, which is about 250 times lower than that of an uncoated component.
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