Mössbauer Investigation of Electrodeposited Sn–Zn, Sn–Cr, Sn–Cr–Zn and Fe–Ni–Cr Coatings
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- 作者：Kuzmann ; E. ; Stichleutner ; S. ; El Sharif ; M. ; Chisholm ; C. U. ; Szirá ; ki ; L. ; Homonnay ; Z. ; Vé ; rtes ; A.
- 关键词：electrodeposits ; M枚ssbauer spectroscopy ; Fe– ; Ni– ; Cr ; Sn– ; Zn
- 刊名：Hyperfine Interactions
- 出版年：2002
- 出版时间：2002
- 年：2002
- 卷：141/142
- 期：1/4
- 页码：425-433
- 全文大小：136 KB
- 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Nuclear Physics, Heavy Ions and Hadrons
Atoms, Molecules, Clusters and Plasmas
Condensed Matter
Surfaces and Interfaces and Thin Films - 出版者：Springer Netherlands
- ISSN：1572-9540
文摘
57Fe and 119Sn CEMS, XRD and electrochemical measurements were used to investigate the effect of the preparation parameters and the components on the structure and phase composition of electrodeposited Fe–Ni–Cr alloys in connection with their corrosion behavior. XRD of the electrodeposits reflect an amorphous-like character. 57Fe CEM spectra of Fe–Ni–Cr electrodeposited samples, prepared in a continuous flow plating plastic circulation cell with variation of current density, electrolyte velocity and temperature, can be evaluated as a doublet associated with a highly disordered paramagnetic solid solution phase. This phase was identified earlier in Fe–Ni–Cr electrodeposits that were prepared by another plating method and contained both ferromagnetic and paramagnetic metastable phases [1]. This is the first time that we have succeeded to prepare Fe–Ni–Cr alloys containing only the metastable paramagnetic phase. The effect of the plating parameters on the structure is also analysed by the quadrupole splitting distribution method. 119Sn CEM spectra of all Sn-containing plated alloys show a broad line envelop which can be decomposed at least into two components. One can be associated with β-tin. The other one can be assigned to an alloy phase. The structure and distribution of microenvironments of these phases depends on the plating parameters especially on the parameters of the reverse pulse applied.