A NEW ELECTROPOLISHING TECHNIQUE FOR METALLOGRAPHIC SPECIMEN PREPARATION OF ZINC AND ZINC-ALLOYS

被引：3
作者：
KOVACHEVA, R
GIDIKOVA, N
LILOVA, A
机构：
[1] Institute for Metal Science and Technology, Bulgarian Academy of Sciences, 1574 Sofia
来源：
MATERIALS CHARACTERIZATION | 1992年 / 28卷 / 03期
关键词：
D O I：
10.1016/1044-5803(92)90082-S
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This article describes results obtained with a new method for electropolishing metallographic specimens of zinc and zinc alloys. An electrolyte containing ethanol, ethylene glycol, and sodium thiocyanate (or ammonium thiocyanate) has been developed. It is demonstrated that this solution has a good polishing action on pure zinc and zinc alloys in the systems Zn-Al-Cu, Zn-Cu-Mn, and Zn-Ni-Cd-Fe. The electropolishing process ensures that bright, defect-free surfaces are obtained for most of these alloys, irrespective of the different chemical compositions and phases present. The process is quick and preliminary specimen preparation is minimal.
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页码：205 / 211
页数：7
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