Improving the corrosion resistance of magnesium by vapor phase processing

Ryan C. Wolfe, Barbara Shaw

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The corrosion resistance of magnesium can be improved by modifying the mechanical and chemical properties of the corrosion product film. In this work, the chemical resistance of the corrosion product film is improved by non-equilibrium alloying of magnesium with titanium and yttrium using the process of vapor deposition. The mechanical characteristics of the corrosion product film are improved by bombardment of the alloy with argon atoms. Alloys that have undergone less bombardment due to their deposition at 15 mTorr (2.0 Pa) exhibit lower corrosion rates than alloys that have undergone more bombardment during their deposition at 2 mTorr (0.27 Pa). This process can induce tensile stresses in the alloy and reduce the density of the alloy surface in a manner that enhances the mechanical stability of the corrosion product film. Corrosion rates were reduced and pitting potentials became significantly more noble. Decreasing the corrosion rate of magnesium may expand range of applications for this lightweight, high stiffness material.

Original languageEnglish (US)
Title of host publicationNACE International - Corrosion 2013 Conference and Expo
StatePublished - 2013
EventCorrosion 2013 - Orlando, FL, United States
Duration: Mar 17 2013Mar 21 2013

Publication series

NameNACE - International Corrosion Conference Series
ISSN (Print)03614409

Other

OtherCorrosion 2013
CountryUnited States
CityOrlando, FL
Period3/17/133/21/13

Fingerprint

Magnesium
Corrosion resistance
Vapors
Corrosion rate
Corrosion
Processing
Yttrium
Vapor deposition
Chemical resistance
Mechanical stability
Argon
Pitting
Titanium
Alloying
Tensile stress
Chemical properties
Stiffness
Atoms
Mechanical properties

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemistry(all)
  • Materials Science(all)

Cite this

Wolfe, R. C., & Shaw, B. (2013). Improving the corrosion resistance of magnesium by vapor phase processing. In NACE International - Corrosion 2013 Conference and Expo (NACE - International Corrosion Conference Series).
Wolfe, Ryan C. ; Shaw, Barbara. / Improving the corrosion resistance of magnesium by vapor phase processing. NACE International - Corrosion 2013 Conference and Expo. 2013. (NACE - International Corrosion Conference Series).
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Wolfe, RC & Shaw, B 2013, Improving the corrosion resistance of magnesium by vapor phase processing. in NACE International - Corrosion 2013 Conference and Expo. NACE - International Corrosion Conference Series, Corrosion 2013, Orlando, FL, United States, 3/17/13.

Improving the corrosion resistance of magnesium by vapor phase processing. / Wolfe, Ryan C.; Shaw, Barbara.

NACE International - Corrosion 2013 Conference and Expo. 2013. (NACE - International Corrosion Conference Series).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - The corrosion resistance of magnesium can be improved by modifying the mechanical and chemical properties of the corrosion product film. In this work, the chemical resistance of the corrosion product film is improved by non-equilibrium alloying of magnesium with titanium and yttrium using the process of vapor deposition. The mechanical characteristics of the corrosion product film are improved by bombardment of the alloy with argon atoms. Alloys that have undergone less bombardment due to their deposition at 15 mTorr (2.0 Pa) exhibit lower corrosion rates than alloys that have undergone more bombardment during their deposition at 2 mTorr (0.27 Pa). This process can induce tensile stresses in the alloy and reduce the density of the alloy surface in a manner that enhances the mechanical stability of the corrosion product film. Corrosion rates were reduced and pitting potentials became significantly more noble. Decreasing the corrosion rate of magnesium may expand range of applications for this lightweight, high stiffness material.

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Wolfe RC, Shaw B. Improving the corrosion resistance of magnesium by vapor phase processing. In NACE International - Corrosion 2013 Conference and Expo. 2013. (NACE - International Corrosion Conference Series).