- Title
- Comparative study of stir casting and infiltration casting of expanded glass-aluminium syntactic foams
- Creator
- Broxtermann, S.; Su, M. M.; Hao, H.; Fiedler, T.
- Relation
- Journal of Alloys and Compounds Vol. 845, Issue 10 December 2020, no. 155415
- Publisher Link
- http://dx.doi.org/10.1016/j.jallcom.2020.155415
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2020
- Description
- The present study investigates the influence of two different manufacturing techniques on the mechanical behaviour of ZL111 aluminium expanded glass (EG) syntactic foam. Counter-gravity infiltration and stir casting methods were used to produce syntactic foams with 2-3 mm and 3-4 mm EG particles, as well as bulk samples. T6 heat treatment was used to alter the microstructure of the ZL111 alloy and, thus, to increase the strength of the specimens. All samples were tested using quasi-static compression and μCT analysis. The density of the produced foam samples varied from 1.03 g/cm3 to 1.33 g/cm3, while the 0.2% offset yield strength varied between 18.83 MPa and 61.62 MPa. The stir casting technique yielded a closed-cell morphology and stronger syntactic foam samples overall. The metallic matrix of the infiltration casting samples exhibited open-cell morphology and the resulting foams had a decreased strength and density.
- Subject
- metal-matrix composites; mechanical properties; mechanical testing; casting
- Identifier
- http://hdl.handle.net/1959.13/1430464
- Identifier
- uon:38848
- Identifier
- ISSN:0925-8388
- Language
- eng
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