A comparative study of the structure and the corrosion behavior of zinc coatings deposited with various methods

被引:35
作者
Vourlias, G.
Pistofidis, N.
Chaliampalias, D.
Pavlidou, E.
Patsalas, P.
Stergioudis, G. [1 ]
Tsipas, D.
Polychroniadis, E. K.
机构
[1] Aristotle Univ Thessaloniki, Dept Phys, GR-54124 Thessaloniki, Greece
[2] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece
[3] Aristotle Univ Thessaloniki, Dept Mech Engn, GR-54124 Thessaloniki, Greece
关键词
surfaces and interfaces; coating materials; metals and alloys; scanning electron microscopy; X-ray diffiraction;
D O I
10.1016/j.surfcoat.2005.11.039
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The structure and the corrosion performance of Zn coatings formed by pack cementation and fluidized bed reactor at 250, 350, 380 and 400 degrees C have been studied. From this investigation, it turned out that these coatings are composed of two layers referring to gamma-FeIIZn40 and delta-FeZn10 phases of the Fe-Zn phase diagram. Furthermore, in the pack coatings, inclusions were detected, which are composed of Fe and Zn at almost equal concentrations. Concerning the corrosion, a mechanism of stress corrosion has been identified. The corrosion performance of the studied coatings is similar to that of the hot-dip galvanized coatings, although the deposition method is different. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:6594 / 6600
页数:7
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