Mechanical properties of aluminium/Inconel 601 composite wires formed by swaging

This work investigates the formability of a composite made of a pure aluminium matrix reinforced with an Inconel fibre network. Composites were formed into wires by swaging, to a true strain ɛtrue = 2.7. Thermal expansion, Young's modulus and tensile properties of these wires were measured. You...

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Bibliographic Details
Published inJournal of materials science Vol. 33; no. 23; pp. 5509 - 5516
Main Authors SALMON, C, BOLAND, F, COLIN, C, DELANNAY, F
Format Journal Article
LanguageEnglish
Published Heidelberg Springer 01.12.1998
Springer Nature B.V
Subjects
Aluminum
Applied sciences
Aspect ratio
Composite materials
Deformation mechanisms
Exact sciences and technology
Fibre reinforced metals
Fragmentation
Materials science
Mechanical properties
Metals. Metallurgy
Modulus of elasticity
Nickel base alloys
Porosity
Powder metallurgy. Composite materials
Production techniques
Superalloys
Swaging
Tensile properties
Thermal expansion
True strain
Nickel base alloys
Fibre reinforced metal
Ductility
Inconel
Mechanical properties
Aluminium
Formability
Tensile property
Wire
Modeling
Composite material
Tensile strength
Young modulus
Thermal expansion
Composite wire
Diameter
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Summary:This work investigates the formability of a composite made of a pure aluminium matrix reinforced with an Inconel fibre network. Composites were formed into wires by swaging, to a true strain ɛtrue = 2.7. Thermal expansion, Young's modulus and tensile properties of these wires were measured. Young's modulus of the wires is slightly larger than that of the as-cast composites, indicating that no significant porosity is present in the composite after deformation. Tensile strength and ductility are found to decrease with increasing reduction of diameter. Scanning electron microscope (SEM) observations show that fibres align during swaging and that fibre fragmentation occurs beyond a certain strain. Fibre fragments reach a critical aspect ratio of about 7 after a swaging true strain of 1.5. Qualitatively, the evolution of the properties is explained by a combination of fibre fragmentation and fibre alignment effects. Properties of the wires are discussed using the Clyne model and the Nardone and Prewo model (modified shear lag models).
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1004487410184