Fabrication of nanoporous metal by selective electrochemical dealloying from laser cladding Cu-Mn alloys

Chang Sheng Dong, Yu Gu, Min Lin Zhong, Ming Xing Ma, Ting Huang, Wen Jin Liu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The nanoporous metal is fabricated by means of hybrid laser processing in combination with electrochemical dealloying. Cu-Mn alloy coatings with fine shape, low dilute ratio and refined microstructure are fabricated on medium carbon steel by means of laser processing. Polarization curve indicates that the Cu-Mn alloy shows selective dissolution characteristics for different electrolytes. Nanoporous Cu and nanoporous Mn are fabricated with optimal electrochemically dealloying parameters. Nanoporous Cu has pore sizes rangeing from 30 to 50 nm, while the surface morphology of the porous Mn shows a ribbon-like structure with ultrahigh roughness factor up to 900. Finally, the potential-pH diagram is used to explain the mechanism of the dealloying.

Original languageEnglish
Article number094211
Pages (from-to)1
Number of pages1
JournalWuli Xuebao/Acta Physica Sinica
Volume61
Issue number9
Publication statusPublished - 2012 May 5
Externally publishedYes

Keywords

  • Cu-Mn alloy
  • Laser cladding
  • Nanoporous
  • Selective dealloying

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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