| タイトル | Development and fabrication of a diffusion welded Columbium alloy heat exchanger |
| 著者（英） | Zimmerman, W. F.; Duderstadt, E. C.; Wein, D.; Titran, R. H. |
| 著者所属（英） | NASA Lewis Research Center|General Electric Co. |
| 発行日 | 1978-02-01 |
| 言語 | eng |
| 内容記述 | A Mini Brayton space power generation system required the development of a Columbium alloy heat exchanger to transfer heat from a radioisotope heat source to a He/Xe working fluid. A light-weight design featured the simultaneous diffusion welding of 148 longitudinal fins in an annular heat exchanger about 9-1/2 in. in diameter, 13-1/2 in. in length and 1/4 in. in radial thickness. To complete the heat exchanger, additional gas ducting elements and attachment supports were added by GTA welding in a vacuum-purged inert atmosphere welding chamber. The development required the modification of an existing large size hot isostatic press to achieve HIP capabilities of 2800 F and 10,000 psi for at least 3 hr. Excellent diffusion welds were achieved in a high-quality component which met all system requirements. |
| NASA分類 | MECHANICAL ENGINEERING |
| レポートNO | 78A31500
AIME PAPER A78-61 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/433184 |
