Phase Composition of Electrodeposited Fe—Zn Alloys

Ie. V. Kolesnyk

SHEI ‘Ukrainian State University of Chemical Technology’, 8 Gagarin Ave., 49005 Dnipropetrovs’k, Ukraine

Received: 02.10.2014; final version - 29.10.2014. Download: PDF

Presence of $\alpha$-phase, Fe$_{75}$Zn$_{25}$, Fe$_{3}$Zn$_{10}$ and $\eta$-phase in electrodeposited Fe—Zn alloys is determined by the method of X-ray diffractometry. The phase proportion varies with the increase of zinc concentration in the sulphate electrolyte. Discovered formation of Fe$_{75}$Zn$_{25}$ phase during co-deposition of iron and zinc can be the cause of creation of previously revealed irregular surface relief with anomalously high roughness. Revision of Fe$_{75}$Zn$_{25}$ phase atomic composition is accomplished by the numerical method based on precise value of the crystal-lattice spacing and taking into account elastic strain caused by zinc atoms, which are dissolved in the $\alpha$-Fe crystal lattice.

Key words: Fe—Zn alloys, phase composition, electrodeposited alloys, coatins.



PACS: 61.05.cp, 61.66.Dk, 68.55.J-, 68.55.Nq, 81.05.Bx, 81.15.Pq, 82.45.Qr

Citation: Ie. V. Kolesnyk, Phase Composition of Electrodeposited Fe—Zn Alloys, Metallofiz. Noveishie Tekhnol., 37, No. 2: 257—264 (2015)

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