Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the Microstructure
An ultrafine-grained Al<sub>71</sub>Ni<sub>14.5</sub>Co<sub>14.5</sub>/CNT poly-quasicrystal (QC/CNT) composite was synthesized using spark plasma sintering of powder components developed through electroless Ni-P/CNT plating of Co particles and mechanical alloying...
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2024-11-01
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| author | Seyedmehdi Hosseini Pavel Novák Mostafa Alishahi Zdeněk Kačenka Petr Šittner |
| author_facet | Seyedmehdi Hosseini Pavel Novák Mostafa Alishahi Zdeněk Kačenka Petr Šittner |
| author_sort | Seyedmehdi Hosseini |
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| description | An ultrafine-grained Al<sub>71</sub>Ni<sub>14.5</sub>Co<sub>14.5</sub>/CNT poly-quasicrystal (QC/CNT) composite was synthesized using spark plasma sintering of powder components developed through electroless Ni-P/CNT plating of Co particles and mechanical alloying. The performance of the synthesized samples was studied using various testing methods, such as room temperature/hot compression, wear, and corrosion tests. The results were compared to the properties of alloy samples fabricated from raw and coated powders (without CNTs). The wear rate and friction coefficient of the quasicrystalline samples improved significantly due to the contribution of the CNTs. The wear rate of the CNT-containing specimens was 0.992 × 10<sup>−4</sup> mm<sup>3</sup>/N/m, which is 47.1% lower than that of the QC sample. The positive impact of the CNTs on the corrosion potential and current density was further validated by the potentiodynamic polarization tests in a saline solution. However, these improvements in surface properties came at the cost of a 21.5% reduction in compressive strength, although the compressive strength still remained above 1.1 GPa at 600 °C. The results highlight an interesting trade-off between surface properties and mechanical strength, pointing toward the development of materials suitable for extreme conditions. |
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| language | English |
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| spelling | doaj-art-6f48b92941cd4f4cb747a97ca06ad58d2025-08-20T01:53:54ZengMDPI AGMetals2075-47012024-11-011411126910.3390/met14111269Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the MicrostructureSeyedmehdi Hosseini0Pavel Novák1Mostafa Alishahi2Zdeněk Kačenka3Petr Šittner4Brunel Centre for Advanced Solidification Technology (BCAST), Brunel University London, Uxbridge UB8 3PH, UKDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech RepublicDepartment of Materials and Polymers Engineering, Hakim Sabzevari University, Sabzevar 9617976487, IranDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech RepublicInstitute of Physics of the CAS, Na Slovance 1992/2, 18221 Prague, Czech RepublicAn ultrafine-grained Al<sub>71</sub>Ni<sub>14.5</sub>Co<sub>14.5</sub>/CNT poly-quasicrystal (QC/CNT) composite was synthesized using spark plasma sintering of powder components developed through electroless Ni-P/CNT plating of Co particles and mechanical alloying. The performance of the synthesized samples was studied using various testing methods, such as room temperature/hot compression, wear, and corrosion tests. The results were compared to the properties of alloy samples fabricated from raw and coated powders (without CNTs). The wear rate and friction coefficient of the quasicrystalline samples improved significantly due to the contribution of the CNTs. The wear rate of the CNT-containing specimens was 0.992 × 10<sup>−4</sup> mm<sup>3</sup>/N/m, which is 47.1% lower than that of the QC sample. The positive impact of the CNTs on the corrosion potential and current density was further validated by the potentiodynamic polarization tests in a saline solution. However, these improvements in surface properties came at the cost of a 21.5% reduction in compressive strength, although the compressive strength still remained above 1.1 GPa at 600 °C. The results highlight an interesting trade-off between surface properties and mechanical strength, pointing toward the development of materials suitable for extreme conditions.https://www.mdpi.com/2075-4701/14/11/1269poly-quasicrystalCNTtrade-offsurface propertiesmechanical strength |
| spellingShingle | Seyedmehdi Hosseini Pavel Novák Mostafa Alishahi Zdeněk Kačenka Petr Šittner Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the Microstructure Metals poly-quasicrystal CNT trade-off surface properties mechanical strength |
| title | Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the Microstructure |
| title_full | Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the Microstructure |
| title_fullStr | Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the Microstructure |
| title_full_unstemmed | Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the Microstructure |
| title_short | Trade-Off Between Wear/Corrosion Performance and Mechanical Properties in D-AlNiCo Poly-Quasicrystals Through CNT Addition to the Microstructure |
| title_sort | trade off between wear corrosion performance and mechanical properties in d alnico poly quasicrystals through cnt addition to the microstructure |
| topic | poly-quasicrystal CNT trade-off surface properties mechanical strength |
| url | https://www.mdpi.com/2075-4701/14/11/1269 |
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