METAL POWDER FOR POWDER METALLURGY, COMPOUND, GRANULATED POWDER, SINTERED BODY, AND METHOD FOR PRODUCING SINTERED BODY
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United States of America Patent
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Oct 1, 2015
app pub date -
Mar 19, 2015
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Mar 26, 2014
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Abstract
A metal powder for powder metallurgy includes particles each having a first region containing Fe as a principal component, a second region, in which the content of a first element is higher than in the first region, the content of Si is higher than in the first region, and the content of Fe is lower than in the first region, and a third region, in which the content of a second element is higher than in the first region, the content of Si is higher than in the first region, and the content of Fe is lower than in the first region. Further, the first region occupies 50% by volume or more of each of the particles and also is crystalline.
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