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Journal of Materials Engineering and Performance

Erschienen in:

12.04.2018

Densification, Microstructural Evolution, Mechanical Properties and Oxidation Study of CrB₂ + EuB₆ Composite

verfasst von: K. Raju, J. K. Sonber, T. S. R. Ch. Murthy, K. Sairam, S. Majumdar, V. Kain, G. V. S. Nageswar Rao

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 5/2018

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Abstract

This paper reports the results of investigation on densification, microstructural evolution, mechanical properties and oxidation study of CrB₂ + EuB₆ composite. CrB₂ + EuB₆ (10 and 20 wt.%) composites have been fabricated by hot pressing at a temperature of 1700 °C and 35 MPa pressure. The hardness and flexural strength were measured in the range of 21.25-24.48 GPa and 171-199 MPa, respectively. The fracture toughness increased from 3.3 to 4.01 MPa m^1/2 by the addition of 20% EuB₆. Microstructural evolution revealed the uniform distribution of EuB₆ and absence of any reaction product. Fracture surface analysis confirmed the presence of transgranular mode of fracture. Oxidation study at 1200 °C revealed that the developed composites have good oxidation resistance and followed the parabolic rate of oxidation.

Vorheriger Artikel Microstructural Evolution of NiCrBSi Coatings Fabricated by Stationary Local Induction Cladding

Nächster Artikel Residual Stress Distribution and Microstructure of a Multiple Laser-Peened Near-Alpha Titanium Alloy

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Titel: Densification, Microstructural Evolution, Mechanical Properties and Oxidation Study of CrB2 + EuB6 Composite
verfasst von: K. Raju
J. K. Sonber
T. S. R. Ch. Murthy
K. Sairam
S. Majumdar
V. Kain
G. V. S. Nageswar Rao
Publikationsdatum: 12.04.2018
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 5/2018
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-018-3354-2

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