Novel Al-based metallic glass coatings by Cold Gas Spray

John Henaoa; Amadeu Concustella; Irene G. Cano; Sergi Dosta; Núria Cinca; Josep M. Guilemany; Tomi Suhonen

doi:10.1016/j.matdes.2016.01.040

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

University of Barcelona

Research output: Contribution to journal › Article › Scientific › peer-review

95 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 language	English
Pages (from-to)	253-261
Journal	Materials and Design
Volume	94
DOIs	https://doi.org/10.1016/j.matdes.2016.01.040
Publication status	Published - 2016
MoE publication type	A1 Journal article-refereed

Keywords

metallic glasses
wear behavior
corrosion behavior
Cold Gas Spray
ProperTune

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10.1016/j.matdes.2016.01.040

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title = "Novel Al-based metallic glass coatings by Cold Gas Spray",

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.",

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year = "2016",

doi = "10.1016/j.matdes.2016.01.040",

language = "English",

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pages = "253--261",

journal = "Materials and Design",

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T1 - Novel Al-based metallic glass coatings by Cold Gas Spray

AU - Henaoa, John

AU - Concustella, Amadeu

AU - Cano, Irene G.

AU - Dosta, Sergi

AU - Cinca, Núria

AU - Guilemany, Josep M.

AU - Suhonen, Tomi

N1 - HUO: printing error in the author's first name Suhonen, Tommy

PY - 2016

Y1 - 2016

N2 - 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.

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.

KW - metallic glasses

KW - wear behavior

KW - corrosion behavior

KW - Cold Gas Spray

KW - ProperTune

U2 - 10.1016/j.matdes.2016.01.040

DO - 10.1016/j.matdes.2016.01.040

M3 - Article

SN - 0264-1275

VL - 94

SP - 253

EP - 261

JO - Materials and Design

JF - Materials and Design

ER -

Novel Al-based metallic glass coatings by Cold Gas Spray

Abstract

Keywords

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