Increasing the Resistance to Cavitation Erosion of 6082 Aluminum Alloys through Thermal Aging Treatments at 140°C and Holding Time of 12 Hours

Abstract:

The use of aluminum alloys in the manufacture of hydropneumatic systems components is very known. However, the knowledge of their behavior under cavitational demands, determinated of flow of the working liquid, is limited. For this reason, in recent years, the older research, carried out on this type of material and on some of its alloys, regarding the resistance to cavity erosion, has been resumed, especially since the mechanical properties and reduced mass are an advantage for the parts that work in this conditions (ship propellers, pumps and bodies of hydraulic devices, etc.). Therefore, the results of this paper are in step with the new researches, highlighting the behavior and resistance to the erosion produced by vibrating cavitation on the aluminum alloy 6082 subjected to the thermal aging treatment at 140 °C, with a holding time of 12 hours. The performance evaluation is based on the characteristic curves of the cavity, the specific parameters and the macro and microstructural investigations. The comparison with the delivered state shows a double increase in resistance from the cavitational erosion created by the shock waves and microjets.

• Periodical: Solid State Phenomena (Volume 349)
• Pages: 63-70
• DOI: https://doi.org/10.4028/p-Qps3kf
• Online since: September 2023
• Authors: Cristan Ghera, Ilare Bordeasu*, Alexandru Nicolae Luca, Cornelia Laura Salcianu, Brandusa Ghiban, Ovidiu Odagiu, Nicuşor Alin Sîrbu, Rodica Bădărău
• Keywords: Aging Heat Treatment, Aluminum 6082, Cavitation Erosion, Microstructure

References

[1] I. Bordeașu: Monograph of the Cavitation Erosion Research Laboratory of the Polytechnic University of Timișoara 1960-20200, (Editura Politehnica, Timișoara 2020)

[2] I. Mitelea, T. Wolfgang: Materials Science II, (Editura Politehnica, Timișoara 2007)

[3] I Lazar1 , I Bordeasu1 , L D Pirvulescu2 , M Hluscu2 , I Mitelea3 and C Ghera1, The behavior to cavitation erosion-corrosion of the CuZn39Pb3 brass structures, obtained by in-depth heat treatments, International Conference on Applied Sciences (ICAS 2020), 1781 (2021) 012004

DOI: 10.1088/1742-6596/1781/1/012004

[4] D. Istrate, C. Ghera, L. Salcianu, I. Bordeasu, B. Ghiban, D.V. Bazavan, L. M. Micu, D.C. Stroita, D. Ostoia, Heat treatmente influence of alloy 5083 on cavitational erosion resistance, Magazine of Hydraulics, Pneumatics, Tribology, Ecology, Sensorics, Mechatronics, "HIDRAULICA", ISSN 1453 – 7303, vol. 3 (2021)

DOI: 10.3390/cryst12111538

[5] D.C. Stroita, A.S. Manea, A. Cernescu, Blade polymeric material study of a cross-flow water turbine runner, Materiale Plastice, Vol. 56 (2019), pp.366-369

DOI: 10.37358/mp.19.2.5187

[6] F. Frant, I. Mitelea, I. Bordeaşu, C. Codrean, D. Mutaşcu, Effect of some heat treatments on cavitation erosion resistance of the EN AW - 6082 alloy, 28th International Conference on Metallurgy and Materials, Brno, Czech Republic, May 22nd - 24th, (2019), pp.663-667

DOI: 10.37904/metal.2019.835

[7] I. Bordeasu, C. Ghera, D. Istrate, L. Salcianu, B. Ghiban, D.V. Bazavan, L. M. Micu, D.C. Stroita, A .Suta, I. Tomoioaga, Resistance and behavior to cavitation erosion of semi-finished aluminum alloy 5083, Magazine of Hydraulics, Pneumatics, Tribology, Ecology, Sensorics, Mechatronics, "HIDRAULICA", ISSN 1453 – 7303, vol. 4 (2021), pp.17-24

DOI: 10.3390/cryst12111538

[8] C. Ghera, O.P. Odagiu, C. L. Salcianu, L. M. Micu, A. N. Luca, I. Bordeasu, M. A. Demian, A.D. Buzatu, B. Ghiban, Ageing Maintaining Time Influence of Cavitation Resistance of 6082 Aluminum type Alloy, U.P.B. Scientific Bulletin Series A Applied Mathematics and Physics, ISSN 1223-7027, (2022), (accepted for publication)

DOI: 10.3390/cryst12111538

[9] *** Standard method of vibratory cavitation erosion test, ASTM, Standard G32, (2016)

[10] Information on https://www.camsa.ro/product-category/produse/componente/hidraulice/pompe-hidraulice/pompe-cu-roti-dintate-si-corp-din-aluminiu/

[11] Information on https://doctorutilaj.ro/proiectare-instalatii-hidraulice/

[12] Information on https://alloy.ro/sudura-elice-de-barca-din-aluminiu