Journal
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
Volume 28, Issue 6, Pages 728-733Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrmhm.2010.06.008
Keywords
Refractory metals; Molybdenum; Joining; EB-welding; Friction welding
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In this work fusion and solid state welding techniques for joining PM refractory metals are adressed The weldability is discussed and evaluated by electron beam and friction welding experiments EB-welding experiments were performed on rolled sheets made of different Mo-based materials While a significant decrease in the mechanical properties was found for the weldments of unalloyed molybedenum and the alloy TZM, good weldability is given for Mo41Re A welding procedure was established and used for the manufacturing of thin walled tubes. Rotary friction welding experiments were carried out on rod material of the Mo-alloys TZM and MHC. Suitable process parameter were determined and successfully transferred for the joining of tubular TZM parts. (C) 2010 Elsevier Ltd. All rights reserved.
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