High-nitrogen nickel-free stainless steel powder and preparation method thereof
The invention discloses a high-nitrogen nickel-free stainless steel powder and a preparation method thereof. The preparation method comprises the following steps of 1, preparing a nitrogen-free nickel-free stainless steel ingot, wherein the nitrogen-free nickel-free stainless steel ingot comprises t...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
12.04.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a high-nitrogen nickel-free stainless steel powder and a preparation method thereof. The preparation method comprises the following steps of 1, preparing a nitrogen-free nickel-free stainless steel ingot, wherein the nitrogen-free nickel-free stainless steel ingot comprises the following components, by mass percentage, of 18-28% of Cr, 13-18% of Mn, 4-10% of Mo, less than 0.02% of C, less than 1% of Si, and the balance Fe; 2, heating the nitrogen-free nickel-free stainless steel ingot to a liquid state and then carrying out atomization to prepare a powder so as to obtain the nitrogen-free nickel-free stainless steel powder; and 3, carrying out the plasma-assisted high-energy ball milling on the nitrogen-free nickel-free stainless steel powder under the atmosphere containing nitrogen elements so as to obtain the high-nitrogen nickel-free stainless steel powder. The preparation method has the advantages of being lower in cost, short in preparation period, high innitrogen injection effici |
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Bibliography: | Application Number: CN201811580413 |