Tribological properties of Ni-Al-Mo composite coating on Al alloy surface preparation by mechanical milling

Abstract

Abstract: Ni-Al-Mo composite coating was prepared on surface of aluminum alloy by the method of mechanical milling. And the microstructure of coating,composition and tribological properties of the coating were analyzed. The result show that the elements in the Ni-Al-Mo composite coating are evenly distributed after 7 h mechanical ball milling. After annealing at 550 ℃,new phases of Al₃Ni intermetallic were formed in the coating. The presence of Al₃Ni and Mo in the composite coating makes the coating hardness higher than that of aluminum alloy substrate and Ni-Al coating, the coating hardness increases with the increase of Mo content, and that is respectively about 105 HV, 125 HV and 167 HV at the addition amount of10%, 20% and 30%; The increase of coating hardness effectively reduces the wear rate,and the wear rate of the coating is about0.4×10^－3～0.6×10^－3mm³/(N·m); The excellent friction coefficient and wear rate of the composite coating effectively protect the aluminum alloy matrix.

Key words: mechanical milling, aluminum alloy, composite coating, tribological properties

CLC Number:

TG495

CHEN Ling-ling, YAN Cheng-qi. Tribological properties of Ni-Al-Mo composite coating on Al alloy surface preparation by mechanical milling[J]. Journal of Lanzhou University of Technology, 2022, 48(1): 8-13.

References

[1] ZHU C,WANG Y G,AN L N,et al.Microstructure and oxidation behavior of conventional and pseudo graded NiCrAlY/YSZ thermal barrier coatings produced by supersonic air plasma spraying process [J].Surface and Coatings Technology,2015,272:121-128.
[2] ZHANG X F,ZHOU K S,LIU M,et al.Enhanced properties of Al-modified EB-PVD 7YSZ thermal barrier coatings [J].Ceramics International,2016,42:13969-13975.
[3] LI Y,LI C J,YANG G J,et al.Thermal fatigue behavior of thermal barrier coatings with the MCrAlY bond coats by cold spraying and low-pressure plasma spraying [J].Surface and Coatings Technology,2010,205:2225-2233.
[4] ROMANKOV S,KALOSHKIN S D,HAYASAKA Y,et al.Structural evolution of the Ti-Al coatings produced by mechanical alloying technique [J].Journal of Alloys and Compounds,2009 483:386-388.
[5] ROMANKOV S,KOMAROV S V,VDOVICHENKO E,et al.Fabrication of TiN coatings using mechanical milling techniques [J].International Journal of Refractory Metals and Hard Materials,2009,27:492-497.
[6] CORENO-ALONSO O,CABANAS-MORENO J G,CRUZ-RIVERA J J,et al.Al-Ni Intermetallics produced by spontaneous reaction during milling [J].Journal of Metastable and Nanocrystalline Materials,2000,343-346:290-295.
[7] TOROSYAN A R,TUCK J R,KORSUNSKY A M,et al.A new mechanochemical method for metal coating [J].Journal of Metastable and Nanocrystalline Materials,2002,386-388:251-256.
[8] ABHIK N C,VIVEK R,UDHAYABANU V,et al.Influence of heat of formation of B₂/L1₂ intermetallic compounds on the milling energy for their formation during mechanical alloying [J].Journal of Alloys and Compounds,2008,465:106-112.
[9] TAKACS L,TOROSYAN A R.Surface mechanical alloying of an aluminum plate [J].Journal of Alloys and Compounds,2007,434-435:686-688.
[10] RÉVÉSZ Á,TAKACS L.Coating metals by surface mechanical attrition treatment [J].Journal of Alloys and Compounds,2007,441:111-114.
[11] ROMANKOV S,KALOSHKIN S D,HAYASAKA Y,et al.Effect of process parameters on the formation of Ti-Al coatings fabricated by mechanical milling [J].Journal of Alloys and Compounds,2009,484:665-673.
[12] ZADOROZHNYY V,KALOSHKIN S,KAEVITSER E,et al.Coating of metals with intermetallics by mechanical alloying [J].Journal of Alloys and Compounds,2011,509:507-509.
[13] ZADOROZHNYY V,KALOSHKIN S,TCHERDYNTSEV V,et al.Formation of intermetallic Ni-Al coatings by mechanical alloying on the different hardness substrates [J].Journal of Alloys and Compounds,2014,586:373-376.
[14] CHEN C,FENG X M,SHEN Y F.Oxidation behavior of a high Si content Al-Si composite coating fabricated on Ti-6Al-4V substrate by mechanical alloying method [J].Journal of Alloys and Compounds,2017,701:27-36.
[15] CHEN C,FENG X M,SHEN Y F.A comparative investigation on bi-layer Al-Cr/Al-Si coating and mono-layer Al-Cr-Si coating synthesized on Ti-6Al-4V alloy substrate by mechanical alloying method [J].Journal of Alloys and Compounds,2017,708:639-651.
[16] CHEN C,FENG X M,SHEN Y F.Effects of annealing treatment and pre-refinement of raw material on microstructures and properties of mechanically alloyed Cr-Al composite coatings on Ti-6Al-4V alloy [J].Materials Characterization,2016,120:97-108.
[17] CHEN C,ZHANG J P,DUAN C Y,et al.Investigation of Cr-Al composite coatings fabricated on pure Ti substrate via mechanical alloying method:Effects of Cr-Al ratio and milling time on coating,and oxidation behavior of coating [J].Journal of Alloys and Compounds,2016,660:208-219.
[18] POURIAMANESH R,VAHDATI-KHAKI J,MOHAMMADI Q.Coating of Al substrate by metallic Ni through mechanical alloying [J].Journal of Alloys and Compounds,2009,488:430-436.