Novel Al-based metallic glass coatings by Cold Gas Spray

John Henaoa, Amadeu Concustella (Corresponding Author), Irene G. Cano, Sergi Dosta, Núria Cinca, Josep M. Guilemany, Tomi Suhonen

Research output: Contribution to journalArticleScientificpeer-review

33 Citations (Scopus)

Abstract

Al-based metallic glass powder was deposited by high pressure Cold Gas Spray technology onto Aluminum- 7075-T6 alloy. Cold Gas Spray parameters such as stand-off distance, gas pressure and gas temperature were varied in order to investigate the optimal conditions to obtain better mechanical and corrosion properties of assprayed coatings. X-ray diffraction and differential scanning calorimetry were used to study the amorphous nature of feedstock powders and coatings, while optical microscopy, scanning electron microscopy and Vickers microhardness were employed to determine thickness, porosity and hardness. Wear and corrosion measurements were carried out on optimized Al-based metallic glass coatings. Sliding wear behavior was evaluated using a ballon-disk tribometer, while the corrosion behavior was studied through electrochemical measurements in NaCl solution at room temperature. The results show an improved wear resistance in the order of 200% higher and higher corrosion resistance than Al-7075-T6 substrate. Present results prove that Al-based metallic glass coatings are a good option to protect Al-alloys in corrosive and wear environments.
Original languageEnglish
Pages (from-to)253-261
JournalMaterials and Design
Volume94
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Metallic glass
Gases
Coatings
Wear of materials
Corrosion
Powders
Caustics
Aluminum
Microhardness
Feedstocks
Wear resistance
Optical microscopy
Corrosion resistance
Differential scanning calorimetry
Porosity
Hardness
X ray diffraction
Temperature
Scanning electron microscopy
Substrates

Keywords

  • metallic glasses
  • wear behavior
  • corrosion behavior
  • Cold Gas Spray
  • ProperTune

Cite this

Henaoa, J., Concustella, A., Cano, I. G., Dosta, S., Cinca, N., Guilemany, J. M., & Suhonen, T. (2016). Novel Al-based metallic glass coatings by Cold Gas Spray. Materials and Design, 94, 253-261. https://doi.org/10.1016/j.matdes.2016.01.040
Henaoa, John ; Concustella, Amadeu ; Cano, Irene G. ; Dosta, Sergi ; Cinca, Núria ; Guilemany, Josep M. ; Suhonen, Tomi. / Novel Al-based metallic glass coatings by Cold Gas Spray. In: Materials and Design. 2016 ; Vol. 94. pp. 253-261.
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Henaoa, J, Concustella, A, Cano, IG, Dosta, S, Cinca, N, Guilemany, JM & Suhonen, T 2016, 'Novel Al-based metallic glass coatings by Cold Gas Spray', Materials and Design, vol. 94, pp. 253-261. https://doi.org/10.1016/j.matdes.2016.01.040

Novel Al-based metallic glass coatings by Cold Gas Spray. / Henaoa, John; Concustella, Amadeu (Corresponding Author); Cano, Irene G.; Dosta, Sergi; Cinca, Núria; Guilemany, Josep M.; Suhonen, Tomi.

In: Materials and Design, Vol. 94, 2016, p. 253-261.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Concustella, Amadeu

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AU - Dosta, Sergi

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AU - Guilemany, Josep M.

AU - Suhonen, Tomi

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AB - Al-based metallic glass powder was deposited by high pressure Cold Gas Spray technology onto Aluminum- 7075-T6 alloy. Cold Gas Spray parameters such as stand-off distance, gas pressure and gas temperature were varied in order to investigate the optimal conditions to obtain better mechanical and corrosion properties of assprayed coatings. X-ray diffraction and differential scanning calorimetry were used to study the amorphous nature of feedstock powders and coatings, while optical microscopy, scanning electron microscopy and Vickers microhardness were employed to determine thickness, porosity and hardness. Wear and corrosion measurements were carried out on optimized Al-based metallic glass coatings. Sliding wear behavior was evaluated using a ballon-disk tribometer, while the corrosion behavior was studied through electrochemical measurements in NaCl solution at room temperature. The results show an improved wear resistance in the order of 200% higher and higher corrosion resistance than Al-7075-T6 substrate. Present results prove that Al-based metallic glass coatings are a good option to protect Al-alloys in corrosive and wear environments.

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Henaoa J, Concustella A, Cano IG, Dosta S, Cinca N, Guilemany JM et al. Novel Al-based metallic glass coatings by Cold Gas Spray. Materials and Design. 2016;94:253-261. https://doi.org/10.1016/j.matdes.2016.01.040