Friction and wear characteristics of aluminum bronze coatings on steel substrates sprayed by a low pressure plasma technique

Alam, Shah; Sasaki, Shinya; Shimura, Hirofumi

doi:10.1016/s0043-1648(00)00520-2

Cited by 36 publications

(14 citation statements)

References 7 publications

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“…Segments enriched with iron are found in both the contact zone and in the thickness of the coating. Such a microstructure is not observed for other methods of applying a bronze coating: in the works by Zhang et al [7] and Alam et al [8] obtained coating made of Cu-10Al-1Fe bronze was seen to exhibit a layered nature without precipitation of additional iron particles. However, such a "mixing" in the contact zone is observed by Liu et al [10] when applying silicon bronze to steel by the shaped metal deposition method.…”

Section: Discussionmentioning

confidence: 93%

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A Study of Characteristics of Aluminum Bronze Coatings Applied to Steel Using Additive Technologies

et al. 2020

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The influence of laser power on the microstructural, strength, and tribological characteristics of aluminum bronze coatings applied to steel by laser cladding was studied. It was found that with an increase in laser power, the morphology of the coating surface becomes more uniform without extreme height differences. This study revealed that the coating microstructure corresponds to that of a composite material and consists of a bronze matrix and iron dendrites of different sizes (depending on the laser power). Such a microstructure affects the microhardness indices, which have a scatter of values over the coating thickness. There is a diffusion zone at the steel–bronze interface, which promotes adhesion of the matrix and coating materials. According to the results of tribological tests, the dry friction coefficient for the studied samples is in the range of 0.389–0.574.

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Section: Discussionmentioning

confidence: 93%

“…Along with electric-arc [7] and plasma spraying [8], the method of applying bronze coatings using additive technologies is considered one of the most promising nowadays. However, there are few papers studying additive application technologies and characteristics of the resulting coating [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A Study of Characteristics of Aluminum Bronze Coatings Applied to Steel Using Additive Technologies

et al. 2020

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“…zones → θ → θ → θ phases while maintained at a constant temperature after quenching [14][15][16]. Al-Cu alloy, whose major hardening phases are metastable θ (CuAl 2 ), is a typical age-harden alloy [16][17][18][19][20]. Sn contained in bronze powders is segregated at interfaces between matrix and phases, hence lowers the interfacial energy, and promotes the nucleation of θ phases [21].…”

Section: Discussionmentioning

confidence: 99%

Correlation of microstructure and wear resistance of molybdenum blend coatings fabricated by atmospheric plasma spraying

Hwang

Lee

Ahn

2004

Materials Science and Engineering: A

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“…High hardness and strength and low friction coefficient are other remarkable characteristics that allow the aluminum bronze to be used in industrial applications as anti-wear coating [1,2]. Thermal spray is a very successful technique employed to obtain aluminum-bronze coatings, and by means of this technology, the embrittlement caused by the ''Self Annealing'' phenomenon is avoided [3]. However, in some cases, high abrasion resistance is also required, but its limited hardness makes it very sensible to wear [4].…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior of Bronze Composite Coatings Obtained by Plasma Thermal Spraying

et al. 2011

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Bronze aluminum composite coatings containing different amounts of alumina were fabricated by plasma spray process and their tribological properties were investigated using ball-on-disk (BOD) and rubber wheel (RW) tests at room temperature. Main wear mechanisms in pure bronze coatings during the ball-on-disk friction test were abrasion and intersplat delamination. The addition of alumina in bronze coatings clearly enhances their wear resistance. To explain this behavior, this article proposes an additional wear mechanism in the composite coatings that involves the rupture of the alumina lamellae located just below the wear track leading to a uniform distribution of fine alumina particles enveloped by the bronze matrix, which increase the surface hardness and hinder the wear. The deposition of debris on the wear track of composite coatings provokes an enhancement of the wear resistance as well. Bronze coatings show a low and stable friction coefficient of around l = 0.3. Nevertheless, coatings with reinforcing particles of alumina show an abrupt transition in the friction coefficient from values around l = 0.4-0.8, related to the modification of the surface contacts on the wear track due to the formation of a compacted debris layer deposited during the tribological test.

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Friction and wear characteristics of aluminum bronze coatings on steel substrates sprayed by a low pressure plasma technique

Cited by 36 publications

References 7 publications

A Study of Characteristics of Aluminum Bronze Coatings Applied to Steel Using Additive Technologies

A Study of Characteristics of Aluminum Bronze Coatings Applied to Steel Using Additive Technologies

Correlation of microstructure and wear resistance of molybdenum blend coatings fabricated by atmospheric plasma spraying

Tribological Behavior of Bronze Composite Coatings Obtained by Plasma Thermal Spraying

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