Enhanced Bio-corrosion Resistance by Cu Alloying in a Micro-alloyed Pipeline Steel

被引：0

作者：

Yunpeng Zeng ^{[1
,2
]}

Wei Yan ^{[3
,4
]}

Xianbo Shi ^{[3
,4
]}

Maocheng Yan ^{[3
]}

Yiyin Shan ^{[3
,4
]}

Ke Yang ^{[3
]}

机构：

[1] School of Materials Science and Engineering, University of Science and Technology of China

[2] Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research , Chinese Academy of Sciences

[3] Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences

[4] CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences

来源：

ActaMetallurgicaSinica(EnglishLetters) | 2022年 / 35卷 / 10期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TG174.4 [金属表面防护技术];

学科分类号：

080503 ;

摘要：

On the composition base of commercial X65 grade pipeline steels, a Cu modified pipeline steel was designed to show improved resistance to microbially induced corrosion(MIC). The mechanical properties of the Cu-added steel and its corrosion behavior in a soil solution inoculated with sulfate-reducing bacteria(SRB) were investigated in this work. The results demonstrated that Cu-added steel exhibits a good combination of strength and toughness. Cu ions released from the Cu-added steel could effectively kill the SRB attaching on the steel surface, thus evidently decreased the pit depth and diameter of Cuadded steel. Furthermore, during the long-term immersion, the Cu-rich film formed by the enrichment of Cu in the corrosion product layer on the steel surface could also contribute to the improvement of the bio-corrosion resistance of Cu-added steel.

引用

页码：1731 / 1743

页数：13

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