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SAP PURCHASE REQUISITION: 4200235624, 4200235624, 4200243992, 4200246406 NNC08CA01C -INTEGRAN SBIR PHASE II THE GRAIN BOUNDARY ENGINEERING (GBE) APPROACH, SUCCESSFULLY DEMONSTRATED IN PHASE I, THAT MICROSTRUCTURAL OPTIMIZATION PROVIDES A VERY SIGNIFICANT IMPROVEMENT IN REDUCING SUSCEPTIBILITY TO INTERGRANULAR CRACK INITIATION AND GROWTH IN CONVENTIONAL WROUGHT INCONEL 718. THE PRINCIPAL OBJECTIVE OF THE PHASE II RESEARCH DEVELOPMENT PROGRAM IS TO EXTEND THE APPLICABILITY OF THE GBE TECHNOLOGY FROM CONVENTIONAL WROUGHT SUPERALLOYS TO MORE ADVANCED POWDER METALLURGY (PM) ALLOYS, AND IN PARTICULAR, THE LOW SOLVUS HIGH REFRACTORY (LSHR) DEVELOPED BY NASA. IN ADDITION, THE PROGRAM ALSO INCLUDES A LIMITED EFFORT TO OPTIMIZE THE GBE PROCESS FOR APPLICATION TO WROUGHT INCONEL 718PLUS. THE PHASE II PROGRAM WILL BUILD UPON THE SUCCESS OF THE PHASE I EFFORT, AND WILL HAVE THE FOLLOWING SPECIFIC TECHNICAL OBJECTIVES: (1) DEVELOP AND OPTIMIZE GBE PROCESSING STRATEGIES FOR OPTIMIZING THE BULK MICROSTRUCTURE OF AN ADVANCED PM DISK ALLOY DEVELOPED BY NASA (I.E., LSHR) AND INCONEL 718PLUS, (2) DEVELOP A COST-EFFECTIVE GBE PROCESSING STRATEGY FOR LOCALLY OPTIMIZING THE MICROSTRUCTURE OF THE PM ALLOY (I.E., LSHR) AT THE NEAR SURFACE, AND (3) EVALUATE THE MECHANICAL PROPERTIES OF THE GBE-PROCESSED ALLOYS AND BENCHMARK WITH PROPERTIES OF THEIR CONVENTIONAL COUNTERPARTS.
Task order obligations
Estimated months remaining until end of performance.
Period of performance
100% of period elapsed
Awarding Agency
NANATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Code: 8000
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