Journal Article

PUBDB-2023-07710

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On the orientation-dependent mechanical properties of interstitial solute strengthened Fe$_{49.5}$Mn$_{30}$Co$_{10}$Cr$_{10}$C$_{0.5}$ high entropy alloy produced by directed energy deposition

Chabok, A. ; Zhang, W. ; Shen, J. ; Oliveira, J. P.Extern* ; Wang, H.Extern* ; Feng, S. ; Schell, N. ; Kooi, B. J. ; Pei, Y. (Corresponding author)

2023
Elsevier Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.addma.2023.103914  doi:10.3204/PUBDB-2023-07710

Abstract: Interstitial solute-strengthened Fe$_{49.5}$Mn$_{30}$Co$_{10}$Cr$_{10}$C$_{0.5}$ (at%) high entropy alloy was additivelymanufactured by directed energy deposition (DED) process in this work. While the asdepositedmaterial exhibits an excellent combination of strength and ductility, the effect ofanisotropy on the mechanical performance of the DED processed component was studied indetail. The ultimate tensile strength (UTS) of the horizontal tensile sample with a main fibertexture of <111> // tensile direction (TD), went up to 1 GPa while maintaining a superbfailure elongation of 36 %. The vertical tensile sample, with a dominant <001> // TD texture,failed at an UTS of 750 MPa with an enhanced failure elongation of 52%. Microstructuralanalysis of the deformed samples showed that the horizontal samples were mainly deformedvia the formation of mechanical twins, whereas the twining activity was less profound in thevertical samples. Single crystal micro-pillar compression testing revealed that the deformationmechanism complies well with the Schmid’s factor. In addition, a higher critical resolvedshear stress for twining compared to slip was also confirmed in the micro-pillar compressiontesting.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Helmholtz-Zentrum Hereon (Hereon)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20210899 EC (I-20210899-EC) (I-20210899-EC)
3. CALIPSOplus - Convenient Access to Light Sources Open to Innovation, Science and to the World (730872) (730872)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2023

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; IF >= 10 ; JCR ; SCOPUS ; Web of Science Core Collection

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