Comparison of Wear and Friction Behavior of Aluminum Matrix Alloy (Al 7075) and Silicon Carbide based Aluminum Metal Matrix Composite under Dry Condition at Different Sliding Distance

Singh, Kalyan; Singh, Saurabh; Shrivastava, Anil Kumar

doi:10.1016/j.matpr.2017.07.248

Cited by 33 publications

(11 citation statements)

References 12 publications

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“…The coefficient of friction and wear rates are reduced as compared to the base metal. However it increased with an increase in sliding speed [17]. Al 6061 reinforced with SiC also showed similar results as above [18].…”

Section: Introductionsupporting

confidence: 75%

Manufacture of silicon carbide reinforced aluminium 6061 metal matrix composites for enhanced sliding wear properties

Bhat¹,

Kakandikar²

2019

Manufacturing Rev.

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Composite materials have the capability of being customised to provide specific mechanical and tribological properties. This paper presents the manufacture of a novel composite of Al6061 with 5% SiC (50 μm size) by the stir casting method. Experimental investigations of mechanical and tribological properties of SiC reinforced Al6061 are discussed. Investigations with a Rockwell hardness tester revealed that this composite had enhanced hardness. Wear characteristics were investigated for Al6061 and the novel composite Al6061 + SiC with a Pin on disc tribometer for a load range of 5N-200N and RPM varying from 200 to 1500. The effect of crucial parameters such as load and RPM on the wear of the novel composite were presented with sensitivity analysis. The results obtained are encouraging, showing the novel composite having a lower wear rate.

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Section: Introductionsupporting

confidence: 75%

Manufacture of silicon carbide reinforced aluminium 6061 metal matrix composites for enhanced sliding wear properties

Bhat¹,

Kakandikar²

2019

Manufacturing Rev.

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“…size: 80-100 nm) were reinforced in AA7075 matrix by ultrasonic assisted cavitation and a combinational approach of molten salt processing with ultrasonic assistance and optimized mechanical stirring. The researchers have With increase in sliding speeds, the values of coefficient of friction and wear rates for both Al alloy and composites also increase [67] SiC, B 4 C Liquid pressing The hybrid composite exhibited dynamic compressive strength over 1.5 GPa, along with a good total strain of 11.7% [71] concluded that composite processed through molten salt processing and undergone T6 treatment exhibited superior mechanical characteristics as compared to all other samples. Sivasankaran et al [24] have fabricated TiB 2 /Gr-Al7075 HMMCs by in-situ liquid metallurgy route.…”

Section: Research Based On Hybrid Compositesmentioning

confidence: 94%

“…The schematic representation of stir casting is shown in Figure 7. But some of the challenges reported in respect of this technique is that improper distribution, poor wettability and porosity formation [26,67] and also higher stirring time leads to formation of voids and agglomeration of reinforcements [7]. The various stir cast processing parameters used by the investigators in the past for AA7075 matrix composites have been listed in Table 3.…”

Section: Friction Stir Processing/welding (Fsp/fsw)mentioning

confidence: 99%

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Reinforcements, production techniques and property analysis of AA7075 matrix composites − a critical review

et al. 2021

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Aluminium alloy based metal matrix composites are being extensively used in the aerospace, automobile, defense, marine and electronic industries owing to their excellent strength, high resistance to wear, corrosion and better thermal stability. Many investigators have explored different aluminium alloy series composites, like heat treatable AA2024, AA6061 and AA7075 since the properties of these matrix alloys can be easily tailor made to suite specific application due to easy processability and heat treatability. AA7075 alloy matrix is predominantly being used, as it exhibits high ultimate tensile strength, resistance to corrosion and fatigue in the group. In the current review work, attention is focused to present types of reinforcing materials used, benefits of reinforcement hybridization, methods employed for composite production and critical property analysis, with conclusions of experimentation and the suggested prospective applications of AA7075 composites. Due to good castability and moldability variety of processing techniques in solid, semisolid and liquid states are possible. As matrix alloy, low processing temperature, ability to accommodate reinforcements and adoptability to different reinforcing techniques, it is easy to obtain optimal properties as per the application. AA7075 with small addition of copper is paved the path in the field of electronic and military applications due to high thermal and electrical conductance. Even pure metal addition & magnesium with copper facilitate good weldability, plasticity and corrosion resistance. Due to the flexibility in accommodating carbide and oxide compound reinforcements in the matrix, this matrix composite widens versatility limit due to excellent hardness and wear resistance. CNT and graphite reinforcements to this aluminium series matrix are marked as ultra-high precision components in defense field.

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“…[10][11][12] Presently, the research on wear resistance of these kinds of materials mainly focuses on dry friction at room temperature. [13][14][15][16][17] However, the research of sulfur-containing boundary lubrication similar to practical conditions is relatively few.…”

Section: Introductionmentioning

confidence: 99%

Tribofilm formation on the VN/7075 composite surface under sulfur-containing boundary lubrication

Bai

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this paper, Al7075 alloy and 15 wt% VN/7075 composite were prepared by ball milling and hot-press sintering. The microstructure, hardness, and wear behavior under different working conditions (environmental condition: dry friction, sulfur-containing boundary lubrication, and oil lubrication) were studied. The results showed that the distribution of VN was dispersive and uniform in 15 wt% VN/7075 composite without obvious agglomeration. The hardness (119.5 Hv) of 15 wt% VN/7075 composite was 46.1% higher than the Al7075 alloy (81.8 Hv). Friction and wear behavior test results showed that under sulfur-containing boundary lubrication condition, according to the tribofilm layer on the worn surface of 15 wt% VN/7075 composite, the friction coefficient of 15 wt% VN/7075 composite decreased by 37.6% compared with the Al7075 alloy. The main wear mechanism of 15 wt% VN/7075 composite was delamination wear and abrasive wear under dry friction, while under sulfur-containing boundary lubrication and oil lubrication, it changed to mild abrasive wear.

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Comparison of Wear and Friction Behavior of Aluminum Matrix Alloy (Al 7075) and Silicon Carbide based Aluminum Metal Matrix Composite under Dry Condition at Different Sliding Distance

Cited by 33 publications

References 12 publications

Manufacture of silicon carbide reinforced aluminium 6061 metal matrix composites for enhanced sliding wear properties

Manufacture of silicon carbide reinforced aluminium 6061 metal matrix composites for enhanced sliding wear properties

Reinforcements, production techniques and property analysis of AA7075 matrix composites − a critical review

Tribofilm formation on the VN/7075 composite surface under sulfur-containing boundary lubrication

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