Solution Heat Treatment of the Single Crystal Nickel-Base Superalloy CMSX-4 Fabricated by Selective Electron Beam Melting

Ramsperger M, Mujica Roncery L, Lopez-Galilea I, Singer R, Theisen W, Körner C (2015)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Advanced Engineering Materials Wiley

Publisher: Wiley-VCH Verlag

Book Volume: 17

Pages Range: 1486-1493

Journal Issue: 10

DOI: 10.1002/adem.201500037

Abstract

Selective electron beam melting (SEBM), which belongs to the additive manufacturing processes, is applied to produce samples from the single crystalline nickel-base superalloy CMSX-4. The influence of the high solidification rates on the microstructure and element distribution is investigated by OM, SEM, DSC, and EMPA. Solution heat treatments at different temperatures and holding times are applied to demonstrate the difference between conventionally cast and SEBM material. The results demonstrate that SEBM is able to produce superalloys with a degree of homogeneity which cannot be realized in conventional processes. Selective electron beam melting (SEBM) manufacturing of CMSX-4 leads to a very fine solidification structure which is two orders of magnitude smaller than in conventional castings (e.g., Bridgman). Microprobe mappings of Re distribution in CMSX-4 can be used to show the differences in homogeneity (a and b). Due to the homogeneity, a solution heat treatment (HT) of 4 min (1320 °C) is already sufficient for homogenization of SEBM CMSX- 4 (c).

Authors with CRIS profile

Markus Ramsperger Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) Robert Singer Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) Carolin Körner Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)

Related research project(s)

Activity SEBM of special alloys Jan. 1, 2000 - Jan. 1, 2003 Activity Development of process strategies Jan. 1, 2000 - Jan. 1, 2003

Involved external institutions

Ruhr-Universität Bochum (RUB) DE Germany (DE)

How to cite

APA:

Ramsperger, M., Mujica Roncery, L., Lopez-Galilea, I., Singer, R., Theisen, W., & Körner, C. (2015). Solution Heat Treatment of the Single Crystal Nickel-Base Superalloy CMSX-4 Fabricated by Selective Electron Beam Melting. Advanced Engineering Materials, 17(10), 1486-1493. https://dx.doi.org/10.1002/adem.201500037

MLA:

Ramsperger, Markus, et al. "Solution Heat Treatment of the Single Crystal Nickel-Base Superalloy CMSX-4 Fabricated by Selective Electron Beam Melting." Advanced Engineering Materials 17.10 (2015): 1486-1493.

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