Surface alloying of stainless steel
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United States of America Patent
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Sep 16, 2014
Grant Date -
Dec 6, 2012
app pub date -
Jun 6, 2011
filing date -
Jun 6, 2011
priority date (Note) -
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Abstract
One aspect of the invention is a method of surface alloying stainless steel, In one embodiment, the method includes providing a stainless steel surface having an initial amount of iron and an initial amount of chromium; and preferentially removing iron from the stainless steel surface to obtain a surface having an amount of iron less than the initial amount of iron and an amount of chromium greater than the initial amount of chromium. Another aspect of the invention is a unitary stainless steel article.
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