TY - JOUR
T1 - Microstructure and micromechanical properties of electrodeposited Zn-Mo coatings on steel
AU - Kazimierczak, Honorata
AU - Ozga, Piotr
AU - Berent, Katarzyna
AU - Kot, Marcin
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/7/5
Y1 - 2015/7/5
N2 - The aim of the work was to characterise the new coating material based on zinc with the addition of molybdenum, electrodeposited on steel substrate from nontoxic, citrate based electrolytes. The surface composition of deposits was ascertained by chemical analysis (WDXRF). The morphology of coatings was studied by SEM. The surface morphology and roughness of Zn-Mo coatings on steel was investigated by AFM. The microhardness and Young modulus were determined by indentation technique, whereas the coating adhesion to the substrate was examined by means of scratch test. The optimal ranges of electrodeposition parameters, enabling the preparation of good quality coatings (i.e. uniform, compact, with good adhesion to the substrate), was specified. The morphology of deposits depends significantly on the content of molybdenum and on the thickness of electrodeposited layer. The microhardness of Zn-Mo coating increases with the increase of molybdenum content up to 3 wt.% and then reaches about 3.5 GPa, which is almost five times that of the value of the microhardness of the Zn coating studied.
AB - The aim of the work was to characterise the new coating material based on zinc with the addition of molybdenum, electrodeposited on steel substrate from nontoxic, citrate based electrolytes. The surface composition of deposits was ascertained by chemical analysis (WDXRF). The morphology of coatings was studied by SEM. The surface morphology and roughness of Zn-Mo coatings on steel was investigated by AFM. The microhardness and Young modulus were determined by indentation technique, whereas the coating adhesion to the substrate was examined by means of scratch test. The optimal ranges of electrodeposition parameters, enabling the preparation of good quality coatings (i.e. uniform, compact, with good adhesion to the substrate), was specified. The morphology of deposits depends significantly on the content of molybdenum and on the thickness of electrodeposited layer. The microhardness of Zn-Mo coating increases with the increase of molybdenum content up to 3 wt.% and then reaches about 3.5 GPa, which is almost five times that of the value of the microhardness of the Zn coating studied.
KW - Coating materials
KW - Electrodeposition
KW - Microhardness
KW - Microstructure
KW - Topography
KW - Zinc-molybdenum alloy
UR - http://www.scopus.com/inward/record.url?scp=84924201233&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2015.02.165
DO - 10.1016/j.jallcom.2015.02.165
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AN - SCOPUS:84924201233
SN - 0925-8388
VL - 636
SP - 156
EP - 164
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -