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Inertial Weldment of Rhenium and Inconel 718 (2018)

Hostetter, G. ; Cavender, D. P. ; Courtright, Z. S. ; [et al.]

In: CASI

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Publication Date: 2019-07-12

Description: Inertia welding has been found to be a successful method for joining pure rhenium to Inconel 718, and with additional experimentation, this process may have great potential for rocket nozzle applications. Refractory metals are ideally suited to this application, where high temperatures and oxidizing environment survivability is required, but not all of the thruster must be made of these materials, only the areas that require them. A bolted joint between the two metals is not ideal, especially for small thrusters where the mess of a bolted join will come at a steep price. A welded joint would be preferred for flight thrusters.

Keywords: Metals and Metallic Materials

Type: NASA/TP-2018-219851 , M-1454

Format: application/pdf

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