Hr2.zip May 2026

: Detailing the laser parameters used to achieve high densification levels.

: 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.

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