: The alloy maintains an ultimate tensile stress of approximately 165 ksi.
: Standard procedures used to optimize the microstructure for tensile strength. hr2.zip
: NASA HR-2 is a mature and viable candidate for critical aerospace hardware, successfully combining printability with robust mechanical performance in hydrogen-rich atmospheres. : The alloy maintains an ultimate tensile stress
: Components in hydrogen-sensitive LREs are prone to hydrogen environment embrittlement. HR-2 was formulated as a promising solution for hardware produced via Laser Powder Bed Fusion (L-PBF) , a type of 3D printing that allows for complex geometries. Methodology : : Components in hydrogen-sensitive LREs are prone to
: 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.