Room temperature wear characteristics of Al2O3-particle-reinforced aluminum alloy composite

Nesarikar, A. R.; Tewari, Surendra N.; Graham, Eileen K

doi:10.1016/0921-5093(91)90846-f

Cited by 23 publications

(10 citation statements)

References 5 publications

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“…However, very few of these tests were reported under lubricated sliding conditions ( Ref 10). Higher wear rate has been reported under reciprocating condition compared with unidirectional sliding (Ref [11][12][13][14][15]. It is, therefore, important to understand the lubricated reciprocal sliding wear behavior of these composites considering the fact that a number of industrial applications, such as engine cylinders, pistons etc., involve reciprocal sliding wear.…”

Section: Introductionmentioning

confidence: 98%

A Fractional Factorial Design Study of Reciprocating Wear Behavior of Al-Si-SiCp Composites at Lubricated Contacts

Rajeev

Dwivedi

Jain

2010

J. of Materi Eng and Perform

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The lubricated reciprocating wear behavior of two composites A319/15%SiC p and A390/15%SiC p produced by the liquid metallurgy route was investigated by means of an indigenously developed reciprocating friction wear test rig using a fractional factorial-design approach. The main purpose was to study the influence of wear and friction test parameters such as applied load, sliding distance, reciprocating velocity, counter surface temperature and silicon content in composites, as well as their interactions on the wear and friction characteristics of these composites. Two output responses (wear loss and coefficient of friction) were measured. The input parameter levels were fixed through pilot experiment conducted in the newly developed reciprocating friction and wear test rig. The counter surface material used for the wear study was cast iron having Vickers hardness of 244 HVN. It had been demonstrated through established equations that A390/15%SiC p composite is subjected to low wear compared to the A319/15%SiC p composite. The experimental results indicate that the proposed mathematical models suggested could adequately describe the performance indicators within the limits of the factors that are being investigated. The applied load, sliding distance, reciprocating velocity, counter surface temperature, and silicon content in composite are the five important factors controlling the friction and wear characteristics of the composite in lubricated condition. Moreover, the two factor interactions have a strong effect on the wear of composites. The results give a comprehensive insight into the wear of the composites.

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Section: Introductionmentioning

confidence: 98%

A Fractional Factorial Design Study of Reciprocating Wear Behavior of Al-Si-SiCp Composites at Lubricated Contacts

Rajeev

Dwivedi

Jain

2010

J. of Materi Eng and Perform

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“…AMC has good mechanical properties it is widely used in aerospace, automobile, marine [1][2][3].When it is reinforced with the hard ceramic particles like B 4 C, ZrSiO 4 resulting in increased wear resistance and mechanical strength. Ceramic reinforced Al alloys are widely used because of their excellent wear resistance and low density in automobile industries [7].In addition, Al-Al 2 O 3 composites having good mechanical and tribological properties are used at crank bearings and motor blocks in order to improve wear resistance [8,9], According to the type of reinforcement the aluminium matrix are manufactured by different methods such as stir casting, squeeze casting and powder metallurgy.…”

Section: Introductionmentioning

confidence: 99%

Wear Characteristics of B4C and Al2O3 Reinforced with Al 5083 Metal Matrix based Hybrid Composite

Hariprasad¹,

Varatharajan²,

Ravi³

2014

Procedia Engineering

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Present work deals with the investigation of the wear behavior of Al 5083 composites synthesized by stir casting technique reinforced with constant weight percentage (5%) of Al 2 O 3 and four different weight percentages of B 4 C (0%, 3%, 5%, and 7%)were taken for investigation. Evaluation of wear properties with the different reinforcement has been obtained. Wear test carried out by the pin-on-disc method under dry conditions with the different load 10, 20N. The worn surface was investigated by the Scanning Electron Microscope (SEM). The investigation reveals that the wear resistance has been improved by increasing weight percentage of B 4 C and Al 2 O 3 , the worn samples show a light adhesive wear traces at the same condition.

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“…However, a further increase in load leads to a new change in the wear mechanism that is again is abrasive. This abrasive wear is associated to the hard surface layer, formed when the fractured particles of the composite are embedded 4 . Sliding rate also has a marked influence on the wear behaviour of aluminium matrix composites.…”

Section: Introductionmentioning

confidence: 99%

“…This abrasive wear is associated to the hard surface layer, formed when the fractured particles of the composite are embedded. 4 Sliding rate also has a marked influence on the wear behaviour of aluminium matrix composites. When this sliding rate is low, failure occurs by the propagation of fatigue cracks generated below the surface.…”

Section: Introductionmentioning

confidence: 99%

Wear behaviour of an aluminium matrix composite

García-Romero

Irisarri

2008

Fatigue Fract Eng Mat Struct

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A B S T R A C T The wear behaviour of a composite material consisting in AS12UNG alloy reinforced with 15% short fibres of alumina has been studied. The material composition and the wear test conditions were defined in order to evaluate the potential performance of automotive pistons produced with such composite composition. As initially expected, the results indicate that an increase in the sliding velocity lead to higher wear rates in the stationary stages, and higher applied loads also induced acceleration in the wear process. Also, reciprocating sliding movement is clearly more damaging than the circular. However, results have shown that wear rates at 150 • C are lower than those recorded at room temperature representing a promising result for the use of this material in components that operate in this condition. This advantageous behaviour is lost at temperatures near to 300 • C, when a marked increase in the wear rate and a signification contribution of adhesive wear were observed.Keywords aluminium matrix composite; automotive pistons; wear behaviour. I N T R O D U C T I O NMetal matrix composites have been used in the automotive market since 1983 when Toyota placed into commercial production a selectively reinforced piston, produced by squeeze casting. 1 This process possesses two characteristics-a reasonably low cost and a high production rate-which makes it attractive for the automotive industry, where preferential attention is paid to the low cost of both materials and processes. Although new potential markets and applications has occurred during these years, the metal matrix composite business is still dominated by automotive applications, which represents more than 60% of the market in volume. Reasons for this wide application must be found in the increased specific stiffness, wear resistance and improved high cycle fatigue behaviour. 2 Discontinuously reinforced aluminium is currently by far the most widely used composite in this sector. During more than 20 years worth of use of these materials, a significant number of papers, discussing the influence of different variables on the wear behaviour of different aluminium matrix composites, have been provided. However, when it is intended to carry out a comparison between the values published in different papers Correspondence: A. M. Irisarri E-mail: airisar@inasmet.es difficulties are found. The first discrepancy arises from the method used to measure the wear rate; volume of material removed or mass loss. This last one can be converted into volume loss by dividing by the density of the material but two objections can be raised. First, not all of the material removed from the groove is lost, but just left on its sides. Consequently, the use of the material displaced concept yields higher wear rates than those measured from weight loss. Moreover, wear of the matrix and the reinforcement is not homogeneous and the use of the average density of the virgin material can lead to error. The variations in the testing conditions between the different published ...

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Room temperature wear characteristics of Al2O3-particle-reinforced aluminum alloy composite

Cited by 23 publications

References 5 publications

A Fractional Factorial Design Study of Reciprocating Wear Behavior of Al-Si-SiCp Composites at Lubricated Contacts

A Fractional Factorial Design Study of Reciprocating Wear Behavior of Al-Si-SiCp Composites at Lubricated Contacts

Wear Characteristics of B4C and Al2O3 Reinforced with Al 5083 Metal Matrix based Hybrid Composite

Wear behaviour of an aluminium matrix composite

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