METHOD OF PRODUCING ADDITIVELY MANUFACTURED OBJECT AND ADDITIVELY MANUFACTURED OBJECT
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United States of America Patent
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Issued Date -
Oct 28, 2021
app pub date -
Apr 20, 2021
filing date -
Apr 28, 2020
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Abstract
A method of producing an additively manufactured object comprises: a step of cooling a shaped body of an alloy formed by additive manufacturing to 0° C. or lower; and a step of aging the shaped body under a temperature condition of 400° C. or higher and 600° C. or lower after the step of cooling the shaped body. The alloy contains: Fe as a main component; 17.0 mass % or more and 19.0 mass % or less of Ni; 7.0 mass % or more and 12.5 mass % or less of Co; 4.6 mass % or more and 5.2 mass % or less of Mo; 0.13 mass % or more and 1.6 mass % or less of Ti; and 0.05 mass % or more and 0.15 mass % or less of Al.
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