Microstructure and phase composition of Al-Nb metal-matrix composites produced by shear deformation under pressure

Al and Nb billets with a coarse grain structure in the form of thin discs were stacked in the order of Al-Nb-Al and then deformed by shear under pressure. After the deformation the samples were annealed at 500°C for 30 min. The formation of an intermetallic compound AUNb was revealed by using X-ray...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 1008; no. 1; pp. 12065 - 12069
Main Authors Danilenko, V N, Kiekkuzhina, L U, Nazarov, K S, Mulyukov, R R
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.12.2020
Subjects
Aluminum matrix composites
Annealing
Billets
Grain structure
Intermetallic compounds
Metal matrix composites
Microhardness
Niobium
Phase composition
Shear deformation
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Summary:Al and Nb billets with a coarse grain structure in the form of thin discs were stacked in the order of Al-Nb-Al and then deformed by shear under pressure. After the deformation the samples were annealed at 500°C for 30 min. The formation of an intermetallic compound AUNb was revealed by using X-ray diffraction and energy-dispersive spectroscopy. After postdeformation annealing, the amount of this compound increased. At the same time, the study of microhardness demonstrates a decrease of the value of microhardness after post-deformation annealing.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1008/1/012065