A parametric study of the relationship between microstructure and wear resistance of Al–Si alloys

Elmadagli, M.; Perry, Thomas A.; Alpas, A.T.

doi:10.1016/j.wear.2006.03.043

Cited by 168 publications

(64 citation statements)

References 14 publications

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“…Moreover, at any given sliding distance, weight loss increases with applied load. Similar trend is also observed for other conditions, which is in agreement with other researchers [40][41][42][43][44][45][46][47][48][49][50][51][52]. The wear rate was calculated from the slope of the weight loss versus sliding distance.…”

Section: Wear Behaviorsupporting

confidence: 90%

Reciprocating Wear Behavior of Al Alloys: Effect of Porosity and Normal Load

Sinha¹,

Islam²,

Farhat³

2015

Int J Metall Mater Eng

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Aluminum alloys are attractive for critical applications such as pistons, clutch housings and liners in automotive industry for their high strength to weight ratio, high corrosion resistance and good heat conductivity. These alloys can be fabricated using casting and powder metallurgy techniques in which porosity is a common feature. The presences of pores adversely affect the mechanical properties and wear resistance of these components. Not only the total area percentage of porosity influences the degradation in properties but also size, shape and interconnectivity of pores play an important role. In this study, aluminum alloys were produced using powder metallurgy technique. The amount of porosity was varied by varying compaction pressure and amount of wax added before compaction. Reciprocating wear tests (ball-on-flat configuration) were performed against AISI 52100 bearing steel ball under both low (1.5-5N) and high (6-20N) loads. Scanning electron microscopy was employed in order to identify possible wear mechanisms. Both detrimental and beneficial effects of porosity under different loading conditions were observed. An attempt has been made to develop a relationship between pore size and distribution and wear behavior of aluminum alloys.

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Section: Wear Behaviorsupporting

confidence: 90%

Reciprocating Wear Behavior of Al Alloys: Effect of Porosity and Normal Load

Sinha¹,

Islam²,

Farhat³

2015

Int J Metall Mater Eng

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“…Replacement of cast iron components with aluminum-based composite castings is a proper strategy for reduction of weight, fuel consumption, emissions, and cost in automotive and aerospace industry. Furthermore, aluminum matrix embedded by solid lubricants possess attractive properties, such as high damping capacity, good machinability, good corrosion resistance, and higher fatigue life than the surface coated aluminum alloys [16,44,47,56]. All these advantages in solid lubricant-reinforced aluminum matrix composites cause an increase in the popularity of Al/Gr composites compared to other type of enhanced materials such as coated metals.…”

Section: Wear and Friction Of Aluminum Alloys And Compositesmentioning

confidence: 99%

Influences of graphite reinforcement on the tribological properties of self-lubricating aluminum matrix composites for green tribology, sustainability, and energy efficiency—a review

Omrani

Moghadam

Menezes

et al. 2015

Int J Adv Manuf Technol

150

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Aluminum/graphite (Al/Gr) composites have been used as self-lubricating materials due to the superior lubricating effect of graphite during sliding. This paper summarizes various tribological aspects of self-lubricating aluminum composites. The influence of various factors such as (a) material factors, graphite size and volume fraction, and (b) mechanical factors, applied load and sliding speed on the tribological properties of self-lubricating aluminum composites, is discussed. Furthermore, the tribological properties of selflubricating composites as a function of these parameters and the active wear mechanism involved in various systems are discussed. Bringing self-lubricating composites into different operating systems is a solution to reduce the use of external toxic petroleum-based lubricants in sliding contacts in a way to help the environment and reduce energy dissipation in industrial components for strategies toward sustainability and energy efficiency.

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“…Past studies [2,3] reported that Si particle morphology, size, and content, significantly affects the wear resistance of these alloys. The size and morphology of the Si particles are considered to be factors controlling the formation and propagation of cracks [4].…”

Section: Introductionmentioning

confidence: 99%

“…Alidokht et al [2] reported that under dry sliding conditions the tendency toward cracking for larger Si particles is greater. It was noticed in [3] that the refinement of Si particles in Al-Si alloys increased the wear resistance. Silicon particles having even and rounded morphology can delay crack nucleation and growth processes in the subsurface region [2].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and wear behavior of friction stir processed cast hypereutectic aluminum silicon

et al. 2017

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Abstract. Hypereutectic as-cast Al-18Si-Cu-Ni alloy was subjected to friction stir processing (FSP). The resultant effect of FSP on the alloy was evaluated by microstructure analysis and wear tests (dry sliding). A significant microstructural modification and enhancement in wear behavior of Al-18Si-Cu-Ni alloy was recorded after friction stir processing. Wear resistance improvement was related to considerable modification in size, morphology and distribution of silicon particles, and hardness improvement. It was found that lower tool rotation speed was more effective to refine silicon particles and in turn increase wear resistance. Minimum Si particle mean area of about 47.8 µm², and wear rate of 0.0155 mg/m was achieved.

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A parametric study of the relationship between microstructure and wear resistance of Al–Si alloys

Cited by 168 publications

References 14 publications

Reciprocating Wear Behavior of Al Alloys: Effect of Porosity and Normal Load

Reciprocating Wear Behavior of Al Alloys: Effect of Porosity and Normal Load

Influences of graphite reinforcement on the tribological properties of self-lubricating aluminum matrix composites for green tribology, sustainability, and energy efficiency—a review

Microstructure and wear behavior of friction stir processed cast hypereutectic aluminum silicon

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