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Title: Microstructure and compression properties of VSS‑V3B2 eutectic alloys in the V-Si-B system
Author(s): Müller, Christopher
Hasemann, Georg
Regenberg, Maximilian
Betke, Ulf
Krüger, Manja
Issue Date: 2020
Type: Article
Language: English
URN: urn:nbn:de:gbv:ma9:1-1981185920-389248
Subjects: V-Si-B
Vanadium-based alloys
Microstructure characterization
Abstract: The present study reports on the microstructural evolution and room temperature plasticity of V(-Si)-B alloys with respect to the V solid solution (VSS)-V3B2 phase region. To investigate the occurring effects systematically, different binary V-B and ternary V-Si-B alloys were produced by conventional arc melting. Scanning electron microscope (SEM) analyses and X-ray diffraction (XRD) measurements were used to characterize the resulting as-cast microstructures. For the first time, the eutectic composition was systematically traced from the binary V-B domain to the ternary V-Si-B system. The observations discover that the binary eutectic trough (VSS-V3B2) seems to reach into the ternary system up to an alloy composition of V-5Si-9B. Room temperature compression tests were carried out in order to study the impact of single-phase and multi-phase microstructures on the strength and plasticity of binary and ternary alloys. The results indicate that the VSS phase controls the plastic deformability in the VSS-V3B2 eutectic microstructure whereas the intermetallic V3B2 acts as a strong hardening phase.
Open Access: Open access publication
License: (CC BY 4.0) Creative Commons Attribution 4.0(CC BY 4.0) Creative Commons Attribution 4.0
Sponsor/Funder: OVGU-Publikationsfonds 2020
Journal Title: Materials
Publisher: MDPI
Publisher Place: Basel
Volume: 13
Issue: 9
Original Publication: 10.3390/ma13092100
Page Start: 1
Page End: 12
Appears in Collections:Fakultät für Maschinenbau (OA)

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