Journal Article

PUBDB-2024-01303

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Tailoring microstructure and properties of CuZrAl(Nb) metallic-glass–crystal composites and nanocrystalline alloys obtained by flash-annealing

Han, X. (Corresponding author)Extern* ; Kaban, I. (Corresponding author)Extern* ; Orava, J. (Corresponding author) ; Das, S. M. ; Shtefan, V. ; Zimmermann, M. V.DESY* ; Song, K. ; Eckert, J.Extern* ; Nielsch, K. ; Herbig, M.Extern*

2024
Ed. Board, Journal of Materials Science & Technology Shenyang

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Please use a persistent id in citations: doi:10.1016/j.jmst.2023.12.065  doi:10.3204/PUBDB-2024-01303

Abstract: Metallic-glass–crystal composites of Cu$_{47.5}$Zr$_{47.5}$Al$_5$ and Cu$_{10}$Zr$_7$-reinforced Cu$_{46.5}$Zr$_{48}$Al$_4$Nb$_{1.5}$ nanocrystalline materials are obtained by flash-annealing of metallic-glass ribbons. In situ high-energy X-ray diffraction reveals the deformation mechanism of the alloys upon tensile loading. For the composites and nanocrystalline materials, a small remaining amount of the metallic glass and/or the presence of the Cu$_{10}$Zr$_7$ phase significantly increase the value of yield stress while maintaining good tensile ductility. In general, the obtained materials exhibit a reversible martensitic transformation (MT) between the B2 CuZr and B19′/B33 phases during tensile loading and unloading. However, the reversibility of MT depends on the alloy composition, crystalline phases, and the number of (un)loading cycles. Serrated-like fluctuations on tensile stress-strain curves and a sign of twinning in the Cu$_{10}$Zr$_7$ crystals are found after yielding in the Cu$_{10}$Zr$_7$-reinforced Cu$_{46.5}$Zr$_{48}$Al$_4$Nb$_{1.5}$ nanocrystalline materials. Electrochemical measurements show that Cu$_{46.5}$Zr$_{48}$Al$_4$Nb$_{1.5}$ nanocrystalline material has good corrosion resistance in NaCl and H$_2$SO$_4$ solutions, even better than the parent metallic glasses in some aspects.

Note: German Research Foundation DFG (Contracts Ka-3209/9-1 and HE 7225/1-1)German Federal Ministry of Education and Science BMBF within the framework of the Röntgen- Ångström Cluster (Project 05K12OD1)

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. PETRA-D (FS-PETRA-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. PETRA Beamline P21.1 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Essential Science Indicators ; IF >= 10 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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