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Cost estimate for molybdenum and tantalum refractory metal alloy flow circuit concepts
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schmidt, George R. Bryhan, A. J. Martin, James J. Godfroy, Thomas J. Hickman, Robert R. |
| Copyright Year | 2010 |
| Description | The Early Flight Fission-Test Facilities (EFF-TF) team at NASA Marshall Space Flight Center (MSFC) has been tasked by the Naval Reactors Prime Contract Team (NRPCT) to provide a cost and delivery rough order of magnitude estimate for a refractory metal-based lithium (Li) flow circuit. The design is based on the stainless steel Li flow circuit that is currently being assembled for an NRPCT task underway at the EFF-TF. While geometrically the flow circuit is not representative of a final flight prototype, knowledge has been gained to quantify (time and cost) the materials, manufacturing, fabrication, assembly, and operations to produce a testable configuration. This Technical Memorandum (TM) also identifies the following key issues that need to be addressed by the fabrication process: Alloy selection and forming, cost and availability, welding, bending, machining, assembly, and instrumentation. Several candidate materials were identified by NRPCT including molybdenum (Mo) alloy (Mo-47.5 %Re), tantalum (Ta) alloys (T-111, ASTAR-811C), and niobium (Nb) alloy (Nb-1 %Zr). This TM is focused only on the Mo and Ta alloys, since they are of higher concern to the ongoing effort. The initial estimate to complete a Mo-47%Re system ready for testing is =$9,000k over a period of 30 mo. The initial estimate to complete a T-111 or ASTAR-811C system ready for testing is =$12,000k over a period of 36 mo. |
| File Size | 5984214 |
| Page Count | 60 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100021082 |
| Archival Resource Key | ark:/13960/t6935tf98 |
| Language | English |
| Publisher Date | 2010-05-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Fabrication Refractory Metals Test Facilities Tantalum Alloys Welding Refractory Metal Alloys Machining Niobium Alloys Lithium Manufacturing Molybdenum Alloys Fission Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
