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6031 |
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Tuesday, May 21, 2019, Saal Brüssel 3:00 PM Brazing for turbine applications |
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Brazing of SLM generated nickel base material IN 625 to porous sinter metal structures for stationary gas turbines |
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Ingo Reinkensmeier* / Siemens AG, Germany Simon Purschke / Siemens AG, Deutschland Thomas Nägel/ Siemens AG, Deutschland Christian Beck/ Siemens AG, Deutschland Stefan Wanjura/ Siemens AG, Deutschland |
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The fabricating of porous media for the purpose of filtration is well known and is been extensively researched. This practice-oriented article provides first development results for high temperature brazing of sinter metal structures to SLM (Selective Laser melting) generated nickel base alloy IN 625 for stationary turbine applications. On the one hand side there is the need for dumping characteristics of the of porous sinter metal structures. On the other hand special features are necessary. The only way for manufacturing this structures are SLM. For this joint we need materially bonded condition. High temperature brazing is the key technology for joining to get the high performance for stationary gas turbines. This practice-oriented article provides microstructure results for high temperature brazing of this material combination. Furthermore tensile and shear tensile outcomes of porous sinter metal structures to SLM generated nickel base alloy IN 625 will be investigated and discussed. At the end of this paper the successful implementation of such produced prototypes will be demonstrated with the use of high temperature brazing of porous sinter structures to SLM generated IN 625. |