Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels
Autor: | Juan D. Betancurt, William Aperador, Jorge Hernando Bautista Ruiz |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2012 |
Předmět: |
Austenite
Tafel equation Materials science corrosion Scanning electron microscope Mechanical Engineering Erosion corrosion Metallurgy chemistry.chemical_element synergy Induction furnace Manganese Condensed Matter Physics erosion Corrosion fermanal chemistry Mechanics of Materials Aluminium lcsh:TA401-492 General Materials Science lcsh:Materials of engineering and construction. Mechanics of materials |
Zdroj: | Materials Research, Iss ahead, p 0 (2012) Materials Research, Volume: 16, Issue: 2, Pages: 447-452, Published: 18 DEC 2012 Materials Research, Vol 16, Iss 2, Pp 447-452 (2013) Materials Research v.16 n.2 2013 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
ISSN: | 1516-1439 |
Popis: | In this paper, the effects of Mn and Al against corrosion/errosion resistance of three samples of the Fe-Mn-Al austenitic alloys are evaluated. The samples have composition Fe-(4,9 ~ 11,0 wt. (%)) Al-(17,49 ~ 34,3 wt. (%)) Mn-(0,43 ~ 1,25 wt. (%))C, those were prepared in an induction furnace from high purity materials. The alloys were evaluated in a composed solution of NaCl 0,5 M and Silica in a special chamber and AISI 316 stainless steel as reference material. The electrochemical characterization was performed by Tafel curve polarizations technique. This microstructural characterization was by Scanning Electron Microscopy (SEM). It was observed the significant decrease in the corrosion rate for steels Fermanal with a lower percentage of aluminum and manganese under conditions of dynamic corrosion and erosion-corrosion. SEM allows assessment of the dominant damage mechanisms and corroborated the results obtained by electrochemical measurements. |
Databáze: | OpenAIRE |
Externí odkaz: |