Acta Metallurgica Sinica (English Letters) ›› 2017, Vol. 30 ›› Issue (7): 601-613.DOI: 10.1007/s40195-017-0545-z

Special Issue: 2017腐蚀虚拟专辑 2017年钢铁材料专辑

• Orginal Article •     Next Articles

Effect of Cu Addition in Pipeline Steels on Microstructure, Mechanical Properties and Microbiologically Influenced Corrosion

Xian-Bo Shi1,2, Wei Yan1, Mao-Cheng Yan1, Wei Wang1, Zhen-Guo Yang1, Yi-Yin Shan1(), Ke Yang1()   

  1. 1 Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China
    2 University of Chinese Academy of Sciences, Beijing 100049,China
  • Received:2016-11-24 Revised:2017-01-09 Online:2017-07-20 Published:2017-08-22
  • About author:

    These authors contributed equally to this work.

Abstract:

In the present study, Cu-modified pipeline steels were fabricated to mitigate MIC by the antimicrobial ability of Cu element. The microstructure, mechanical properties and the antimircobial performance of the Cu-modified steel were systematically investigated. The Cu-modified steels showed good antimicrobial performance with remarkable strength enhancement by nanoscale Cu-rich precipitates and good impact toughness without changing the original base microstructures after the optimal aging treatment of 500 °C/1 h.

Key words: Pipeline steel, Cu addition, Mechanical, properties, Microstructure, Antimicrobial performance