On the creep properties of powder metallurgical Al-Al2O3 composites by small punch testing method
| Project start: | 01.01.2020 |
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| Project end: | 31.12.2022 |
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| Programme: | VEGA |
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| Project number: | 2/0143/20 |
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| Institute position in the project: | The only one project investigator |
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| Project leader: | Peter Krížik |
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The main aim of this project is studying the creep behavior and determining the creep properties of ultrafine-grained (UFG) Al composites stabilized by nano-scale Al
2O
3 produced by powder metallurgy (PM), which belong to HITEMAL group, using a small punch test (SPT) method. HITEMAL has been proven for its exceptional thermal stability and mechanical properties at elevated temperatures not normally associated with use of conventional Al alloys and composites. By variations in PM consolidation approach applied in the project various HITEMAL materials with different Al grain structure, and different content, distribution, crystal structure and morphology of in-situ Al
2O
3 component will be manufactured and used for testing. An emphasis of SPT studies will be put on the following: 1) to elucidate the effect of Al
2O
3 component on a creep behavior; 2) to determine the effect of Al grain structure on creep behavior; 3) to compare the creep properties measured by SPT with those obtained by standard tensile test.