Dry sliding friction and wear of Al 6061 and Al 6082 alloys under different normal loads

Reddy, I. Srinivasula; Kaliveeran, Vadivuchezhian

doi:10.1016/j.matpr.2019.11.080

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…The cemented carbide substrate with higher hardness can provide the stronger support for the film, reduce the press-in depth of the counterpart, and then reduce the mutual friction contact area; moreover, when the local film is worn through, the cemented carbide substrate with high hardness also has a high wear resistance. In the report [28], compared with the Al 6082 alloy, the Al 6061 alloy with higher hardness had a relatively lower wear volume (4 mm 3 vs. 6.2 mm 3 , 7.7 mm 3 vs. 9.8 mm 3 ) in the wear test under different load (10 and 15 N), indicating that the difference of material bearing capacity will affect the wear rate. Figure 12 shows the wear rate (WS) results of the coated cemented carbides in NaCl aqueous solution medium.…”

Section: Wear Ratementioning

confidence: 92%

Effect of Substrates Characteristics on Tribological Behaviors of AlTiN-Based Coated WC–Co Cemented Carbides

et al. 2022

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The wear resistance of coated tools is a key technical parameter, which is indirectly affected by the substrate phase characteristics. WC–Co cemented carbides with varied WC grain sizes (0.4, 0.7, 1.2 μm) and Co contents (3, 6, 10, 12 wt.%) were used as the substrates. Single-layer Al0.52Ti0.48N and multilayer Ti0.89Si0.11N/TiAlSiN/Al0.52Ti0.48N films were deposited on the substrates by DC magnetron sputtering. Reciprocating friction tests were carried out in the air medium and the 3.5 wt.% NaCl aqueous solution, respectively. In the air medium, the films on the fine and the submicron WC–Co substrates with the weaker carrying capacity became worn through earlier than those on the ultrafine substrates. In the NaCl solution medium, for the ultrafine-grained WC–10Co substrates with different Co contents, the friction coefficients (FS) of the film had a linear negative correlation with the hardness (HS) of the substrates. With the decrease in the WC grain sizes or the Co contents, the wear rates of the coated alloys decreased gradually (by 19.7% and 34.5%, respectively). The regular patterns obtained can provide a reference for the selection and design of the phase composition of the cemented carbide substrates.

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Section: Wear Ratementioning

confidence: 92%

Effect of Substrates Characteristics on Tribological Behaviors of AlTiN-Based Coated WC–Co Cemented Carbides

et al. 2022

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“…Most of the researchers (Wang et al , 2010; Westlund et al , 2018) have studied the wear and friction characteristics of aluminium alloys by considering steel as a counter-face material, having a flat on flat contact configuration, during the experiments. Few researchers (Dewan and Mohammad, 2012; Pan et al , 2018; Srinivasula Reddy and Kaliveeran, 2019a) focused on the friction behaviour of aluminium-to-aluminium metal alloy during full sliding. In the present study, dry sliding experiments were conducted by considering the contact pair of aluminium-to-aluminium, having a cylinder on flat contact configuration.…”

Section: Introductionmentioning

confidence: 99%

Coefficient of friction of dry sliding Al 6061-T6 alloy under different loading conditions

Reddy

Kaliveeran

2020

WJE

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Purpose This paper aims to focus on the effect of normal load, sliding speed and temperature on the coefficient of friction of Al 6061-T6 alloy under dry sliding conditions. Design/methodology/approach Dry sliding experiments were conducted using rotary type pin on disk tribometer. Pins with 3 mm radius of contact and circular disks of 165 mm diameter were fabricated to simulate Hertzian contact configuration. Experiments were conducted by applying three different normal loads (1, 1.5 and 2 kg) and three different sliding speeds (1.25, 2 and 3 m/s) at different temperatures [room temperature (31 ± 1 °C), 60 °C, 100 °C and 150 °C]. Findings Coefficient of friction at end of the first cycle of sliding, stabilized stage, unsteady state and steady state are reported elaborately in this study. Adhesive and abrasive wear mechanisms were observed in the dry sliding of Al 6061- T6 alloy contacts from the microscopic analysis of worn contact surfaces. The coefficient of friction was more influenced by the increase in normal load than the increase in sliding speed and temperature. Practical implications The results obtained from this study are significant for the design of aluminium-to-aluminium contacts in aerospace engineering and automobile engineering. Originality/value This study reveals the coefficient of friction of aluminium-to-aluminium (Al 6061-T6 alloy) contacts under cylinder on flat contact configuration.

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Tribological characterisation of bio lubricant from cucurbita pepo L. seed oil

Mondal¹,

Baruah²,

Choudhury³

2022

Advances in Materials and Processing Technologies

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Dry sliding friction and wear of Al 6061 and Al 6082 alloys under different normal loads

Cited by 5 publications

References 9 publications

Effect of Substrates Characteristics on Tribological Behaviors of AlTiN-Based Coated WC–Co Cemented Carbides

Effect of Substrates Characteristics on Tribological Behaviors of AlTiN-Based Coated WC–Co Cemented Carbides

Coefficient of friction of dry sliding Al 6061-T6 alloy under different loading conditions

Tribological characterisation of bio lubricant from cucurbita pepo L. seed oil

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