Journal Article

FZJ-2019-02526

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Microstructures of Ternary Eutectic Refractory Me-Si-B (Me = Mo, V) Alloy Systems

Hasemann, G.FZJ* ; Krüger, M. (Corresponding author)FZJ* ; Palm, M. ; Stein, F.

2018
Trans Tech Publ. Uetikon

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Please use a persistent id in citations: doi:10.4028/www.scientific.net/MSF.941.827

Abstract: The present work addresses the microstructure evolution of refractory Me-Si-B (Me = Mo, V) alloys consisting of a refractory metal solid solution phase (MeSS) and two intermetallic phases Me5SiB2 and Me3Si. The aim of the present study is to find the ternary eutectic composition in such systems which are expected to combine a well-defined eutectic microstructure with properties such as high strength, an excellent creep resistance at high temperatures and acceptable oxidation behavior. Two refractory metal systems based on molybdenum and vanadium are investigated. Various alloy compositions located in different primary solidification areas were produced by arc-melting and analyzed via SEM. The obtained results are discussed in the light of published liquidus projections. By carrying out these experiments, a MeSS-Me5SiB2-Me3Si ternary eutectic could be determined in both Me-Si-B systems.

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Contributing Institute(s):

1. Werkstoffstruktur und -eigenschaften (IEK-2)

Research Program(s):

1. 111 - Efficient and Flexible Power Plants (POF3-111) (POF3-111)

Appears in the scientific report 2019

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Database coverage:
Allianz-Lizenz / DFG ; Nationallizenz ; SCOPUS

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