Publication detail

INVESTIGATION OF Ni-P COATINGS ON AZ91 CAST MAGNESIUM ALLOY

WASSERBAUER, J. BUCHTÍK, M. BRESCHER, R.

Original Title

INVESTIGATION OF Ni-P COATINGS ON AZ91 CAST MAGNESIUM ALLOY

Type

conference paper

Language

English

Original Abstract

In this paper, the preparation and characterization of as-deposited and heat-treated low phosphorus Ni-P coatings on AZ91 magnesium was performed. Heat-treated Ni-P coatings reached the higher microhardness of 1030 ± 20 HV 0.025 when compared to as-deposited Ni-P coatings (560 ± 20 HV 0.025). Using the scanning electron microscopy, the microstructure and surface morphology of Ni-P coatings was observed. Heat-treated coatings were formed by cracks network on their surface due to their crystallization during the heat-treatment. These cracks negatively affected the electrochemical and corrosion properties. However, as-deposited Ni-P coatings improved the electrochemical corrosion properties when compared to AZ91 alloy. The corrosion potential increased to -0.59 ± 0.02 V and the corrosion current density decreased to 1.4 ± 0.3 µA∙cm-2 .

Keywords

Electroless Ni-P coating, AZ91, magnesium alloy, heat treatment, potentiodynamic polarization test

Authors

WASSERBAUER, J.; BUCHTÍK, M.; BRESCHER, R.

Released

15. 11. 2019

Publisher

TANGER Ltd.

Location

Ostrava

ISBN

978-80-87294-92-5

Book

METAL 2019, May 22 nd - 24 th 2019, Conference Proceedings

Edition

1 st Edition, 2019

Pages from

1192

Pages to

1196

Pages count

5

URL

https://metal2019.tanger.cz/files/uploads/02//METAL2019_Conference_Proceedings_Content.pdf

BibTex

@inproceedings{BUT160678,
  author="Jaromír {Wasserbauer} and Martin {Buchtík} and Roman {Brescher}",
  title="INVESTIGATION OF Ni-P COATINGS ON AZ91 CAST MAGNESIUM ALLOY",
  booktitle="METAL 2019, May 22 nd  - 24 th  2019, Conference Proceedings",
  year="2019",
  series="1 st  Edition, 2019",
  pages="1192--1196",
  publisher="TANGER Ltd.",
  address="Ostrava",
  isbn="978-80-87294-92-5",
  url="https://metal2019.tanger.cz/files/uploads/02//METAL2019_Conference_Proceedings_Content.pdf"
}