Development, Microstructure and Corrosion Resistance of Al-Mg-(Si) Binary and Ternary System Samples in 5.3% NaCl Solution for Applications with Environmental Impact
-
Published:2015-07
Issue:
Volume:1114
Page:239-244
-
ISSN:1662-8985
-
Container-title:Advanced Materials Research
-
language:
-
Short-container-title:AMR
Author:
Popescu Ileana Nicoleta1, Enescu Maria Cristiana1, Bratu Vasile1, Zamfir Raluca Ioana2, Stoian Elena Valentina1
Affiliation:
1. Valahia University from Targoviste 2. University POLITEHNICA of Bucharest
Abstract
For ensuring fuel consumption and pollution reduction, the researches made in the past decades considerable efforts to replacing steel with aluminum alloys in manufacturing auto bodies, or in naval transportation, because the promising weight saving. The researches consisted in general corrosion (the gravimetric index and the corrosion rate, Vcorr) and tensile tests (Rm, Rp0.2 and A5) in correlation with microstructure analysis of heat treated Al-Mg-(Si) system samples alloy, in order to obtain the best corrosion resistance and high mechanical characteristics. The Al alloys in extrusion state were solution treated at 510 – 545oC for 10-60 minutes, quenched in water 30-50o C and artificial aging at 150, 180 and 210°C at different time of aging (1, respectively 3, 7 and 11 hours). After heat treatment the obtained alloys were corroded in solution of 53g NaCl + 1000 ml distilled water and boiled in these solutions for 8, 16 respectively 24 hours. The gravimetric index was determinate by mass loss measurements for all types of heat treatment conditions. After corrosion test, samples were prepared for optical microstructural analyzing and mechanical tested. We have compared the obtained results on Al-Mg and Al-Mg-Si alloys. Were established (i) the optimum heat conditions parameters for obtaining of highest values of mechanical characteristics and corrosion resistance and also (ii) was explained the structural evolution during age (precipitation) hardening for both systems.
Publisher
Trans Tech Publications, Ltd.
Subject
General Engineering
Reference13 articles.
1. S. O. Adeosun, O. I. Sekunowo, S. A. Balogun, and V. D. Obiekea, Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments, International Journal of Corrosion, (2012), pp.1-9. 2. R. Molina, P. Amalberto, M. Rosso, Metallurgical Science and Technology (2011), pp.5-13. 3. I.N. Popescu, R. Vidu, V. Bratu, A.B. Olei, D.N. Ungureanu, F.V. Anghelina, effects of Silicon carbide proportion and artificial Aging Parameters on Microstructure and Hardness of Al-Cu/SiCp Composites, Solid State Phenomena, Trans Tech Publications, 216 (2014). 4. M. -C. Enescu, I. -N. Popescu, R. Zamfir, A. Molagic, V. Bratu, Experimental researches on the corrosion behavior and microstructural aspects of heat treated Al-Zn-Mg-Cu alloys, International Journal of Energy and Environment, 4(4), (2010). 5. I.N. Popescu, S. Zamfir, V.F. Anghelina C.O. Rusanescu, Processing by P/M route and characterization of new ecological Aluminum Matrix Composites (AMC), Int. J. of Mechanics, 3(4), (2010), p.71–80.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|