ALLOYS FOR HARDBANDING WELD OVERLAYS
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United States of America Patent
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Issued Date -
Aug 7, 2014
app pub date -
Feb 10, 2014
filing date -
Sep 17, 2009
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Abandoned
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Abstract
Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises <10 μm carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are families of alloys capable of forming crack-free weld overlays after multiple welding passes.
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