- Title
- Impact of particle strength and matrix ductility on the deformation mechanism of metallic syntactic foam
- Creator
- Al-Sahlani, Kadhim; Kisi, Erich; Fiedler, Thomas
- Relation
- Journal of Alloys and Compounds Vol. 786, p. 292-299
- Publisher Link
- http://dx.doi.org/10.1016/j.jallcom.2019.01.283
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2019
- Description
- This paper presents a systematic study on the interaction between particle strength, matrix ductility and the deformation mechanism in metallic syntactic foam (MSF). Packed beds of near-spherical NaCl particles (ø2-2.8 mm) were infiltrated with liquid metal to produce the required samples. The brittle zinc alloy ZA-27 and ductile Aluminium (99% Al) were used as matrix materials. NaCl particles were retained inside half of these samples to replicate MSF containing high-strength particles. NaCl was leached from the remaining samples to investigate MSF with weak particles. This procedure ensured that all samples had a near-identical matrix geometry and microstructure, thus isolating the effect of particle strength. Quasi-static compression tests were conducted and significant changes in the deformation behaviour were observed. Samples containing NaCl particles deformed in a shear-band dominated mode, whilst the ductile foam underwent layer-by-layer deformation.
- Subject
- syntactic foam; particle strength; ductility; mechanical properties; deformation mechanism
- Identifier
- http://hdl.handle.net/1959.13/1405813
- Identifier
- uon:35552
- Identifier
- ISSN:0925-8388
- Language
- eng
- Full Text
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