PRINTABLE HARD FERROUS METALLIC ALLOYS FOR ADDITIVE MANUFACTURING BY DIRECT ENERGY DEPOSITION PROCESSES
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United States of America Patent
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Issued Date -
Jun 1, 2023
app pub date -
Apr 14, 2021
filing date -
Apr 14, 2020
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Abstract
A printed metallic part is provided. The alloy has the composition of Fe at 69.2 wt. % to 89.1 wt. %; Cr at 7.25 wt. % to 16.0 wt. %; Nb at 0.01 wt. % to 10.0 wt. %; Mo at 0.5 wt. % to 4.0 wt. %. C at 0.03 wt. % to 0.4 wt. % and optionally one or more of Ni, Cu, Si, W, Mn, N and B. The printed metallic part has a tensile strength of at least 1300 MPa, a yield strength of at least 700 MPa, an elongation of at least 4.0%, and a hardness of at least 45 HRC.
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