Wear resistance of plasma sprayed Al–Si binary alloy coatings on A6063 Al alloy substrate

Nakata, Kohei; Ushio, Masao

doi:10.1016/s0257-8972(01)01088-x

Cited by 23 publications

(5 citation statements)

References 7 publications

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“…AA6063 alloys containing 0.6-1.2%Mg and 0.4-1.3%Si are the most important ones of 6xxx series aluminium alloys. With heat treatment, strength, hardness and wear resistance of these alloys, whose mechanical characteristics are weak, can be increased [1][2][3]. One of the most known and used methods to increase wear strength of these alloys with heat treatment is artificial ageing method.…”

Section: Introductionmentioning

confidence: 99%

The Effects of T5 and T6 Heat Treatments on Wear Behaviour of AA6063 Alloy

Özyürek

Tunçay

Kaya

2014

High Temperature Materials and Processes

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In this study, T5 heat treatment was applied to AA6063 alloy aged at 455 K for 2 hours after extrusion at 686 K. T6 heat treatment was also carried out by ageing at 455 K for 2 hours after solution heat treatment at 794 K for 1 hour. Heat treated T5 and T6 specimens were tested by pin-on-disc type wear equipment. Wear test was carried out by using 10, 20, 30 N loads and 400, 800, 1200 and 1600 m wear distance. T5 and T6 heat treated specimens were characterized with scanning electron microscope, X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and hardness measurements. Worn surfaces of the specimens was also characterised with SEM. The results indicated that small and homogenously dispersed Mg 2 Si precipitates formed in AA6063 aluminium alloy with T6 heat treatment were compared to the T5 heat treatment. As a result of increment precipitate size, wear resistance decreased. T6 heat treated specimens showed higher hardness compared to the T5 heat treated specimens. In addition wear resistance and friction coefficient of both T5 and T6 heat treated specimens decreased with increasing applied load.

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Section: Introductionmentioning

confidence: 99%

The Effects of T5 and T6 Heat Treatments on Wear Behaviour of AA6063 Alloy

Özyürek

Tunçay

Kaya

2014

High Temperature Materials and Processes

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“…The hardness values of conventionally cast (cooling rate of ~10 2 Ks -1 ) eutectic Al-Si alloys (~20 wt.% Si) vary in the range of 100-150 VHN. 25 However, an Al-17 wt.% Si alloy processed by the planer fl owcasting technique (~10 4 Ks -1 cooling rate) showed an overall hardness of 250 VHN. 5 The increase in hardness in HVOF processed alloys is largely attributed to a combination of the following factors:…”

Section: Nanoindentation and Microhardnessmentioning

confidence: 99%

Forming nanostructured hypereutectic aluminum via high-velocity oxyfuel spray deposition

Laha¹,

Agarwal

Mckechnie

2004

JOM

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Al-Si alloys are widely used in aerospace and automobile industries due to their high strength-to-weight ratio and superior wear and corrosion resistance. Increasing the percentage of silicon in these alloys improves their wear resistance and strength considerably, but impairs their ductility. This problem can be overcome by refi ning the microstructure of hypereutectic alloys by varying the processing conditions. High velocity oxyfuel (HVOF) spray deposition is an effi cient process to deposit nanostructured Al-Si coatings and near-net-shape spray-formed structures. This article deals with the microstructural evolution in an Al21wt.% Si alloy processed through HVOF spraying.

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“…The reduction of vehicle weight is getting more important because of commercial and environmental needs. Al-Si cast alloys are best-suited material for fulfilling such objectives and opted for the manufacturing of automobile components at minimum cost with improved specific strength and its recycling ability [2][3][4]. Machining is the process that involves various input/output parameters for attaining the desired performance measures.…”

Section: Introductionmentioning

confidence: 99%

Multi-Aspects Optimization of Process Parameters in CNC Turning of LM 25 Alloy Using the Taguchi-Grey Approach

Dhanalakshmi

Babu

2020

Metals

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LM 25 is an aluminum alloy that has numerous applications such as in the manufacturing of automobile components and food industries, and especially in marine and seawater applications, due to its exceptional properties. An exertion has been taken for attaining the best-suited group of machining variables to attain improved and better performance in machining such as increased rate of material removal, lessened roughness values at the machined surface and the total cost incurred during machining. Taguchi’s design methodology has been implemented for devising the experimental combinations and also for single aspects optimization of deemed performance measures. Grey’s theory concept has been adopted for attaining Grey Relational Coefficient values and the values have been further utilized for evolving Grey Relational Grade. Analysis of Variance (ANOVA) has been employed to determine the significance of input process variables on the desired performance measures and interaction analysis also has been performed to determine the interaction effect between the selected process variables. As a result of optimization, the optimal combination of cutting parameters in turning LM25 aluminum alloy is cutting speed (A) = 150.79 m/min, feed (B) = 0.15 mm/min, depth of cut (C) = 0.9 mm and cutting fluid flow rate (D) = 75 mL/h. Compared with the initial parameter settings, surface roughness (Ra) decreases by 67.97%, material removal rate (MRR) increases by 88.12% and total machining cost (TMC) decreases by 93.86%. The proposed approach helps the manufacturer to attain better machining performance at an affordable cost.

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Wear resistance of plasma sprayed Al–Si binary alloy coatings on A6063 Al alloy substrate

Cited by 23 publications

References 7 publications

The Effects of T5 and T6 Heat Treatments on Wear Behaviour of AA6063 Alloy

The Effects of T5 and T6 Heat Treatments on Wear Behaviour of AA6063 Alloy

Forming nanostructured hypereutectic aluminum via high-velocity oxyfuel spray deposition

Multi-Aspects Optimization of Process Parameters in CNC Turning of LM 25 Alloy Using the Taguchi-Grey Approach

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