Influence of material processing and interface on the fiber fragmentation process in titanium matrix composites
| dc.contributor.author | Matikas, T. E. | en |
| dc.date.accessioned | 2015-11-24T17:34:59Z | |
| dc.date.available | 2015-11-24T17:34:59Z | |
| dc.identifier.issn | 0927-6440 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/14065 | |
| dc.rights | Default Licence | - |
| dc.subject | titanium alloys | en |
| dc.subject | metal matrix composites | en |
| dc.subject | fiber-matrix interface | en |
| dc.subject | fragmentation | en |
| dc.subject | shear-strength | en |
| dc.subject | polymeric composites | en |
| dc.subject | tensile properties | en |
| dc.subject | graphite fibers | en |
| dc.subject | sic fiber | en |
| dc.subject | microstructure | en |
| dc.subject | adhesion | en |
| dc.subject | fracture | en |
| dc.subject | alloy | en |
| dc.subject | tests | en |
| dc.title | Influence of material processing and interface on the fiber fragmentation process in titanium matrix composites | en |
| heal.abstract | The objective of this work is to study the effect of composite processing conditions on the nature of the fiber-matrix interface in titanium matrix composites and the resulting fragmentation behavior of the fiber. Titanium matrix, single fiber composites (SFCs) were fabricated by diffusion bonding and tensile tested along the fiber axis to determine their interfacial load transfer characteristics and the resulting fiber fragmentation behavior. Two different titanium alloys, Ti-6Al-4V (wt%) and Ti-14Al-21Nb (wt%), were used as matrix material with SiC (SCS-6) fibers as reinforcement. The tensile tests were conducted at ambient temperature and were continuously monitored by acoustic emission. It was observed that the Ti-6Al-4V/SCS-6 composite system exhibited a greater degree of fiber-matrix interfacial reaction, as well as a rougher interface, compared to Ti-14Al-21Nb/SCS-6 composites. Acoustic emissions during tensile testing showed that most of the fiber fractures in Ti-6Al-4V/SCS-6 occurred at strains below similar to 5% and the fragmentation ceased at similar to 10% strain corresponding to specimen necking. In contrast, the Ti-14Al-21Nb/SCS-6 composite deformed without necking and fiber fractures occurred throughout the plastic range until final fracture of the specimen at about 12% strain. The markedly different fragmentation characteristics of these two composites were attributed to differences in the fiber-matrix interfacial regions and matrix deformation behavior. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1163/156855408784514757 | - |
| heal.identifier.secondary | <Go to ISI>://000256949900002 | - |
| heal.journalName | Composite Interfaces | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2008 | - |
| heal.publisher | Taylor & Francis | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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