AAl230 aluminum alloy samples were coated by plasma electrolytic oxidation (PEO). The samples with and without surface mechanical attrition treatment (SMAT) were coated in phosphate- and silicate-based electrolytes and in the presence of Si3N4 nanoparticles. Besides, morphology and properties of the produced coatings were examined. To determine the corrosion resistance of the coatings, potentiodynamic polarization technique was used. All coated samples were subjected to wear test in order to compare coating wear properties of the SMATed and unSMATed samples. Then the effects of SMAT preprocessing and its duration on the properties of the coatings prepared by PEO were investigated. The results indicated that the mean coefficient of friction of the coated samples decreased by near 83% with respect to the uncoated (raw) samples. Furthermore, the SMATed samples showed thicker coatings as compared to unSMATed samples due to an increase in their matrix reactivity. (C) 2014 Elsevier B.V. All rights reserved.
机构:
Yonsei Univ, Dept Mat Sci & Engn, 134 Sinchon Long, Seoul 120749, South KoreaSahand Univ Technol, Dept Mat Sci & Engn, Tabriz 513351996, Iran
Haghighat-Shishavan, Safa
Nazarian-Samani, Masoud
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Yonsei Univ, Dept Mat Sci & Engn, 134 Sinchon Long, Seoul 120749, South Korea
Univ Tehran, Sch Met & Mat Engn, Coll Engn, Tehran 111554563, IranSahand Univ Technol, Dept Mat Sci & Engn, Tabriz 513351996, Iran
机构:
Brintel Sistemas Seguranca, Av Presidente Vargas 1461, BR-35661000 Para De Minas, MG, BrazilBrintel Sistemas Seguranca, Av Presidente Vargas 1461, BR-35661000 Para De Minas, MG, Brazil
Barbosa, Bruna Almeida
Costa, Giselle Barata
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Univ Fed Sul & Sudeste Para, Inst Geociencias & Engn, Maraba, Para, BrazilBrintel Sistemas Seguranca, Av Presidente Vargas 1461, BR-35661000 Para De Minas, MG, Brazil
Costa, Giselle Barata
Pires de Souza, Maria Eliziane
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Univ Fed Maranhao, Ctr Ciencias Exatas & Tecnol, Engn Mecan, Sao Luis, Maranhao, BrazilBrintel Sistemas Seguranca, Av Presidente Vargas 1461, BR-35661000 Para De Minas, MG, Brazil
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Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, EnglandUniv Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
Khan, R. H. U.
Yerokhin, A.
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Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, EnglandUniv Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
Yerokhin, A.
Li, X.
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Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, EnglandUniv Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
Li, X.
Dong, H.
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Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, EnglandUniv Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
Dong, H.
Matthews, A.
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Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, EnglandUniv Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
机构:
Ariel Univ, Lab Met & Ceram Coatings & Nanotechnol, Mat Res Ctr, IL-40700 Ariel, IsraelAriel Univ, Lab Met & Ceram Coatings & Nanotechnol, Mat Res Ctr, IL-40700 Ariel, Israel
Kossenko, Alexey
Zinigrad, Michael
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Ariel Univ, Lab Met & Ceram Coatings & Nanotechnol, Mat Res Ctr, IL-40700 Ariel, IsraelAriel Univ, Lab Met & Ceram Coatings & Nanotechnol, Mat Res Ctr, IL-40700 Ariel, Israel