Method for hardfacing metal articles
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United States of America Patent
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Jul 17, 1990
Grant Date -
N/A
app pub date -
Sep 29, 1988
filing date -
Sep 29, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a method for applying a hardface alloy coating on a metal substrate concurrently with a nitriding procedure so that the hardface coating is deposited and nitrided in one step. The deposition of the metal hardface coating is conducted in an atmosphere of nitrogen under nitriding conditions. The single step of metal deposition and nitriding is made possible by using a hardface alloy composition containing 20-75% niobium, 5-35% titanium and 10-60% tungsten.
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