Journal of Thermal Spray Technology

, Volume 25, Issue 3, pp 595–604

Investigations of Local Corrosion Behavior of Plasma-Sprayed FeCr Nanocomposite Coating by SECM

  • Xi Shi
  • Mingyong Shu
  • Qingdong Zhong
  • Junliang Zhang
  • Qiongyu Zhou
  • Quoc Binh Bui
Technical Note

DOI: 10.1007/s11666-016-0377-9

Cite this article as:
Shi, X., Shu, M., Zhong, Q. et al. J Therm Spray Tech (2016) 25: 595. doi:10.1007/s11666-016-0377-9
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Abstract

FeCr alloy coating can be sprayed on low-carbon steel to improve the corrosion resistance because of FeCr alloy’s high anti-corrosion capacity. In this paper, Fe microparticles/Cr nanoparticles coating (NFC) and FeCr microparticles coating (MFC) were prepared by atmospheric plasma spraying and NFC was heat-treated under hydrogen atmosphere at 800 °C (HNFC). EDS mapping showed no penetration of Ni in MFC and NFC while penetration of Ni occurred in HNFC. X-ray diffraction results indicated the form of the NiCrFe (bcc) solid solution in HNFC. SECM testing in 3.5 (wt.%) NaCl revealed that the anti-corrosion capacity of NFC improved compared with MFC, while HNFC improved further.

Keywords

corrosion protection heat treatment nanocomposite plasma spray forming protective coatings 

Copyright information

© ASM International 2016

Authors and Affiliations

  • Xi Shi
    • 1
  • Mingyong Shu
    • 1
  • Qingdong Zhong
    • 1
  • Junliang Zhang
    • 1
  • Qiongyu Zhou
    • 2
  • Quoc Binh Bui
    • 3
  1. 1.State Key Laboratory of Advanced Special SteelsShanghai UniversityShanghaiChina
  2. 2.School of Materials Science and EngineeringJiangxi University of Science and TechnologyGanzhouChina
  3. 3.Vietnam Maritime UniversityHaiphongVietnam

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