Niobium and carbon nanostructured coatings for corrosion protection of the 316L stainless steel

被引:12
作者
Ferreira, M. O. A. [1 ]
Mariani, F. E. [2 ]
Leite, N. B. [3 ]
Gelamo, R. V. [4 ]
Aoki, I. V. [5 ]
de Siervo, A. [6 ]
Pinto, H. C. [1 ]
Moreto, J. A. [1 ]
机构
[1] Univ Sao Paulo, Sao Carlos Sch Engn, Mat Engn Dept, Av Joao Dagnone 1100, BR-13563120 Sao Carlos, SP, Brazil
[2] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Prod Engn, Av Trab Sao Carlense 400,Parque Arnold Schimidt, BR-13566590 Sao Carlos, SP, Brazil
[3] Fed Univ Triangulo Mineiro UFTM, Inst Exact Sci Nat & Educ, Av Doutor Randolfo Borges Jr, BR-38064200 Uberaba, MG, Brazil
[4] Fed Univ Triangulo Mineiro UFTM, Inst Technol & Exact Sci, Ave Doutor Randolfo Borges Jr, BR-38064200 Uberaba, MG, Brazil
[5] Univ Sao Paulo, Polytech Sch, Dept Chem Engn, Av Prof Luciano Gualberto,Travessa 3,380, BR-05508010 Sao Paulo, Brazil
[6] State Univ Campinas UNICAMP, Inst Phys Gleb Wataghin IPGW, BR-13083859 Campinas, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
316L SS; Electrochemical corrosion tests; Niobium pentoxide thin films; Carbon coatings; RAMAN-SPECTRA; NITRIDE FILMS; MAGNESIUM ALLOYS; TITANIUM; BEHAVIOR; WETTABILITY; DEPOSITION;
D O I
10.1016/j.matchemphys.2023.128610
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work aims to investigate the influence of niobium and carbon nanostructured coatings on the corrosion resistance of the 316L SS. The coated and uncoated specimens were morphologically and structurally characterized by using OM, SEM/EDX, DRX, FTIR, Raman spectroscopy and XPS techniques. The corrosion behaviour was assessed by OCP, PPc, EIS as well as immersion tests in 0.6 mol L-1 NaCl solution. In addition, the average contact angles were used to evaluate the surfaces free energy by the Van Oss interfacial tension component theory approach. Results showed that the surface treatments positively influenced the corrosion resistance of the 316L SS and the coatings act as a protective barrier against corrosion process. The reactive sputtering technique increased the wettability of the surfaces in relation to the base material. Considering applications in aggressive media, the 316L SS/Nb2O5 specimen exhibits superior performance when compared to the base material and 316L SS/carbon.
引用
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页数:16
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