期刊
MATERIALS CHARACTERIZATION
卷 59, 期 1, 页码 32-39出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2006.10.008
关键词
stainless steels; EIS; polarizations; crevice corrosion; oxidation
Two types of ferritic stainless steel powders (AISI 409LNb and 434L) have been sintered in vacuum at three different temperatures (1225, 1250 and 1275 degrees C). The corrosion behaviour of the six materials produced has been studied through polarization curves and electrochemical impedance spectroscopy (EIS) measurements. The electrochemical tests have been carried out for the six materials before and after a high-temperature exposure at 800 degrees C. A new parameter, the active area factor (AAF), deduced from EIS measurements, has been proposed. This AAF quantifies approximately the relationship between the apparent surface of the powder metallurgical (PM) stainless steel specimens and the real surface exposed to corrosion. (c) 2006 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据