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Chemical milling of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo alloys in hydrofluoric-nitric acid solutions

Author
Sefer, B.; Dobryden, I.; Almqvist, N.; Pederson, Robert; Antti, Marta-lena
Type of activity
Journal article
Journal
Corrosion
Date of publication
2017-04-01
Volume
73
Number
4
First page
394
Last page
407
DOI
https://doi.org/10.5006/2277 Open in new window
Repository
http://hdl.handle.net/2117/104324 Open in new window
URL
http://corrosionjournal.org/doi/10.5006/2277?code=nace-prem-site Open in new window
Abstract
The behavior of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo during chemical milling in hydrofluoric-nitric (HF-HNO3) acid solutions with 1:3 and 1:11 molar ratios was investigated using electrochemical and atomic force microscopy (AFM) techniques. Faster corrosion rate in 1:3 solutions was measured for Ti-6Al-4V than for Ti-6Al-2Sn-4Zr-2Mo, whereas in 1:11 solution Ti-6Al-2Sn-4Zr-2Mo exhibited higher corrosion rate. Scanning Kelvin probe force microscopy measurements revealed difference in the Volta p...
Citation
Sefer, B., Dobryden, I., Almqvist, N., Pederson, Robert, Antti, M. Chemical milling of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo alloys in hydrofluoric-nitric acid solutions. "Corrosion", 1 Abril 2017, vol. 73, núm. 4, p. 394-407.
Keywords
Atomic force microscopy, chemical milling/pickling, galvanic corrosion, linear polarization resistance, scanning Kelvin probe force microscopy, titanium alloys
Group of research
CIEFMA - Structural Integrity, Micromechanics and Materials Reliability Centre

Participants

  • Sefer, Birhan  (author)
  • Dobryden, Illia  (author)
  • Almqvist, Nils  (author)
  • Pederson, Robert  (author)
  • Antti, Marta-lena  (author)