ANODIC POLARIZATION OF Fe-Cr BINARY ALLOYS EMBRITTLED AT 475 degree C and Fe-Cr COUPLING ELECTRODE IN N-H2SO4 SOLUTION.

被引：0
|
作者：
Mito, Masaji
Sugawara, Hideo
机构：
来源：
Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals | 1974年 / 38卷 / 01期
关键词：
IRON AND ALLOYS - Anodic Oxidation - IRON AND STEEL METALLOGRAPHY - Etching;
D O I：
10.2320/jinstmet1952.38.1_22
中图分类号：
学科分类号：
摘要：
Potentiodynamic polarization experiment was performed on a number of Fe-Cr binary alloys in N-H//2SO//4 solution with prolonged 475 degree C embrittlement. The curves for the Fe-Cr coupling electrode in which a high Cr alloy and a low Cr alloy were placed in a single mount were also studied. The second anodic current maximum in the active region was observed on embrittled (475 degree C multiplied by 1000 hr) 26% Cr alloy and 31% Cr alloy. Pronounced first peak and second peak potentials accorded with the passivation potentials for unembrittled 50% Cr, 15% Cr alloy, respectively. Behavior of the Fe-Cr coupling electrode resembled embrittled Fe-Cr alloys.
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页码：22 / 28
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