CORROSION RESISTANT OBJECT WITH ALLOYING ZONE
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United States of America Patent
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Issued Date -
Feb 3, 2011
app pub date -
Feb 26, 2009
filing date -
Feb 28, 2008
priority date (Note) -
Abandoned
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Abstract
This invention relates to objects having a corrosion resistant surface improving the overall corrosion resistance of the object relative to the core material, preferably being titanium or titanium based. The surface layer preferably contains at least 80% of a refractory metal such as tantalum, or an alloy based on one or more refractory metals, To ensure a good adhering of the surface to the base material an alloy layer is created between a core element and the surface layer having a thickness at least twice that of the surface layer, where the alloy layer itself has corrosion resistant properties.
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