Taherishargh, Mehdi and Katona, Bálint and Fiedler, Thomas and Orbulov, Imre Norbert (2016) Fatigue properties of expanded perlite/aluminum syntactic foams. Journal of Composite Materials. pp. 1-34. ISSN 0021-9983 (In Press)
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Abstract
The main purpose of this paper is to present the basic fatigue properties of metal matrix syntactic foams (P-MSFs). The investigated syntactic foams consisting of expanded perlite and A356 aluminum matrix were produced using an inert gas pressure infiltration technique. The obtained foams were subjected to cyclic compressive loading in order to investigate their fatigue properties. The standard procedure for cyclic fatigue testing was slightly modified to account for the variation of porosity and strength which is typical for metallic foam samples. This approach allows the direct comparison of the fatigue test results between all investigated samples. Depending on the applied load level, two different failure mechanisms were identified that resulted in characteristic deformation - loading cycle curves. The failure mechanisms were further investigated on the microstructural scale: traces of fatigue beachmarks and extensive plastic deformation were found. Furthermore, Wöhler-like deformation – lifetime diagrams were created in order to predict the expected lifetime of the P-MSFs.
| Item Type: | Article |
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| Subjects: | T Technology / alkalmazott, műszaki tudományok > TJ Mechanical engineering and machinery / gépészmérnöki tudományok |
| Depositing User: | Dr. Imre Norbert Orbulov |
| Date Deposited: | 21 Sep 2016 09:24 |
| Last Modified: | 04 Apr 2023 11:40 |
| URI: | http://real.mtak.hu/id/eprint/39745 |
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