In:
Materials Science Forum, Trans Tech Publications, Ltd., Vol. 932 ( 2018-9), p. 81-90
Abstract:
In this study, the effects of Al 2 O 3 additives on the anticorrosion and tribological properties of Mn 3 (PO 4 ) 2 -coated carbon steel were investigated. The microstructure and morphology of the coatings were studied by scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The Vickers micro-hardness and wear resistance of the produced composite coatings were evaluated and compared with those of the non-composited Mn 3 (PO 4 ) 2 coating. The electrochemical corrosion behaviors of the prepared coatings were investigated in a 3.5 wt.% NaCl solution by a potentiostat–galvanostat device to determine the effects of Al 2 O 3 on the formation of Mn 3 (PO 4 ) 2 coatings on steel. Mn 3 (PO 4 ) 2 composite conversion coatings were successfully created by chemical treatment, with the main component of hureaulite [(Mn,Fe) 5 H 2 (PO 4 ) 4 ∙4H 2 O]. The micro-hardness, wear resistance, corrosion performance, and passivation behaviors of the coatings were improved by adding Al 2 O 3 particles. The optimum concentration of Al 2 O 3 particles in the Mn 3 (PO 4 ) 2 coating to attain the best microstructure, wear resistance properties, and corrosion resistance was 10 g/L.
Type of Medium:
Online Resource
ISSN:
1662-9752
DOI:
10.4028/www.scientific.net/MSF.932
DOI:
10.4028/www.scientific.net/MSF.932.81
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2018
detail.hit.zdb_id:
2047372-2
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