SINTERED ALLOY AND MANUFACTURING METHOD THEREOF
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United States of America Patent
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Issued Date -
Mar 7, 2013
app pub date -
Aug 13, 2012
filing date -
Sep 7, 2011
priority date (Note) -
Abandoned
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Abstract
A sintered alloy includes, in percentage by mass, Cr: 11.75 to 39.98, Ni: 5.58 to 24.98, Si: 0.16 to 2.54, P: 0.1 to 1.5, C: 0.58 to 3.62 and the balance of Fe plus unavoidable impurities; a phase A containing precipitated metallic carbides with an average particle diameter of 10 to 50 μm; and a phase B containing precipitated metallic carbides with an average particle diameter of 10 μm or less, wherein the phase A is randomly dispersed in the phase B and the average particle diameter DA of the precipitated metallic carbides in the phase A is larger than the average particle diameter DB of the precipitated metallic carbides of the phase B.
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