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: The alloy maintains an ultimate tensile stress of approximately 165 ksi.

: Standard procedures used to optimize the microstructure for tensile strength. hr2.zip

: Detailing the laser parameters used to achieve high densification levels. : The alloy maintains an ultimate tensile stress

: NASA HR-2 is a specialized superalloy developed to withstand the extreme conditions of liquid rocket engines (LREs). This paper explores its mechanical properties, including high yield stress (~95 ksi) and exceptional ductility in high-pressure hydrogen environments. hr2.zip