High-temperature annealing of ferritic stainless steel: Modification of sulfide inclusion properties and inhibition of inclusion dissolution

被引：0
|
作者：
Nishimoto, Masashi [1 ]
Muto, Izumi [1 ]
Sugawara, Yu [1 ]
Hara, Nobuyoshi [1 ]
机构：
[1] Department of Materials Science, Tohoku University, Japan
来源：
Zairyo to Kankyo/ Corrosion Engineering | 2020年 / 69卷 / 07期
基金：
日本学术振兴会;
关键词：
Ferrite - Manganese alloys - Corrosion resistance - Sulfur compounds - Manganese compounds - Pitting - Annealing - Scanning electron microscopy - Ferritic stainless steel - Polarization - Steel corrosion;
D O I：
10.3323/jcorr.69.194
中图分类号：
学科分类号：
摘要：
The effects of the annealing temperature on the electrochemical properties, anodic dissolution, and pitting corrosion resistance of MnS inclusions in 18mass％Cr ferritic stainless steel are investigated by scanning electron microscopy, macroscale polarization, and microscale polarization. The MnS inclusions in the specimens annealed at higher temperatures have higher Cr concentrations and lower Mn concentrations. The onset potential of the inclusion dissolution and the pitting corrosion resistance of the MnS inclusions increase with an increasing annealing temperature. © 2020 Japan Society of Corrosion Engineering. All rights reserved.
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收藏
页码：194 / 198
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