Dry wear behaviour and its relation to microstructure of novel 6092 aluminium alloy–Ni3Al powder metallurgy composite

Wang, Y.; Rainforth, W.M.; Jones, H.; Lieblich, Marcela

doi:10.1016/s0043-1648(01)00783-9

Cited by 100 publications

(50 citation statements)

References 40 publications

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“…% of gas atomised Ni 3 Al particles [10]. This material presented a sound matrix/reinforcement bonding and good wear properties compared to unreinforced Al [6,11], and was thermally stable up to 300°C. For higher treatment temperatures, deleterious diffusion reaction products appeared [7,12], that hindered the use of age hardening Al alloy matrices such as those of the 2xxx and 6xxx Al series.…”

Section: Introductionmentioning

confidence: 97%

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Torres

Lieblich

2006

J Mater Sci

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In the present work, a 2124/15vol%MoSi 2 composite was obtained by powder metallurgy. Its microstructure and mechanical properties were investigated at room and at high temperature (up to 200ºC) in conditions T351, T4 and after heat treatments at 495ºC for up to 100 hours. Up to 150ºC, tensile properties of 2124/MoSi 2 in T351 resulted similar to those of a ceramic reinforced 2124/SiC composite. Yield stress of the 2124/MoSi 2 material, after heating at 495ºC for up to 100 hours, resulted higher than that of the monolith 2124 alloy heated for the same periods. No diffusion reaction phases were formed surrounding the MoSi 2 reinforcing particles during such long exposures to high temperature. Only at 100 hours, large plate-like precipitates that contain Al, Cu, Mg and Si appeared. The high thermal stability of this 2124/MoSi 2 composite and its good mechanical properties at room and at elevated temperature makes MoSi 2 intermetallic a competitor of ceramic reinforcements.

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Section: Introductionmentioning

confidence: 97%

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Torres

Lieblich

2006

J Mater Sci

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“…In recent years, a lot of research is focused on aluminium matrix composites (AMCs). An optimal mixture of high strength and ductility gives aluminium matrix composites an extensive range of potential progressive applications [2][3][4]. The applications of aluminium alloys are limited because of poor wear resistance at room and elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Tribological behavior, mechanical properties and microstructure of Al-12Si-ZrC composite prepared by powder metallurgy

John¹,

Paul²,

Singh³

et al. 2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. High-energy mechanical alloying method was used to prepare Al-12Si-xZrC (x = 0, 5, 10, 15 wt. %) nanocomposites. Cylindrical preforms were prepared with an initial preform density of 89% by using a suitable die and punch assembly. The preforms were sintered in a muffle furnace with an inert gas atmosphere at a temperature of 550°C, followed by cooling until room temperature has been attained. Scanning electron microscope (SEM) and X-ray diffraction (XRD) techniques were used to characterize the composites. Pin-on-disc wear testing machine was used to determine the tribological properties of the prepared composites. The results show that the wear loss reduced with increasing the reinforcement content and coefficient of friction increases gradually. Normally, solid state methods are used to produce composites with high mechanical properties, because these methods deliver a uniform distribution of reinforcing phase particle in the matrix material [6][7][8][9][10]. Some trials were conducted to fabricate Al-12Si-xZrC nanocomposites using different techniques, but the mechanical alloying method is a suitable technique to fabricate Al-12Si-xZrC nanocomposites. No attempt has been made to fabricate Al matrix composites reinforced with ZrC particles using the P/M method. In this present paper, an effort is made to study the outcome of wear behavior of Al-12Si-xZrC nanocomposites prepared with the mechanical alloying method. These composites were characterized using SEM and XRD. The wear behavior was calculated using the weight loss method. The worn surfaces and wear debris were characterized using SEM. Experimental procedure2.1. Materials. Aluminium and silicon with 99.5% purity and particle size of 44 µm were purchased from Metal Powder Company Limited, Thirumangalam, Tamilnadu, India, and the ZrC powder with a high, 99.9% purity and particle size of 400 nm was purchased from US Research Nanomaterials, Inc., USA. The individual powders were pulverized and mixed in a high-energy ball mill with ball-to-powder weight ratio of 20:1. The milling was done at a constant speed of 300 rpm in a wet medium with a presence of toluene to avoid oxidation and agglomeration. Scanning electron microscope images were used for the analysis of mixed powder particles. Fig. 1 shows the received powders of aluminium, silicon, and zirconium carbide. From the SEM images, it can be visualized that aluminium was spherical in shape, silicon was flattened and nano-zirconium carbide had a cubic crystal shape.

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“…The hardness and density of the ageing materials are much higher than those of the non-ageing materials, and clearly increase with the increasing percentage of B 4 C weight. The hardness of the composite materials had changed with heat treatment, indicating that precipitation hardening of the matrix materials had taken place [14]. Full heat treatment of this type of aluminum alloy is achieved in the three stages.…”

Section: Resultsmentioning

confidence: 99%

The Effects of Aging on the Hardness and Wear Behaviour of 2124 Al Alloy/B₄C Composites

Öksüz

Oskay

2015

Acta Phys. Pol. A

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The particulate reinforced aluminum alloy matrix composites are being increasingly used for wear component applications. The inuence of matrix aging treatment on wear behavior in a powder metallurgy 2124 Al-B4C composite was investigated. The aging responses of 2124 Al-B4C metal matrix composite (MMC) and unreinforced matrix alloy are studied and related to variations in wear resistance properties. The MMC is aged resolution treated. Accelerated aging occurs in both MMC conditions, compared with unreinforced alloy. Wear resistance and hardness were substantially higher in the reinforced alloys. The eects of the percentage of boron carbide addition on the microstructure, hardness and wear tests of the produced material are discussed. The eects of the age hardening process are also considered.

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Dry wear behaviour and its relation to microstructure of novel 6092 aluminium alloy–Ni3Al powder metallurgy composite

Cited by 100 publications

References 40 publications

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Tribological behavior, mechanical properties and microstructure of Al-12Si-ZrC composite prepared by powder metallurgy

The Effects of Aging on the Hardness and Wear Behaviour of 2124 Al Alloy/B₄C Composites

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Dry wear behaviour and its relation to microstructure of novel 6092 aluminium alloy–Ni3Al powder metallurgy composite

Cited by 100 publications

References 40 publications

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Tribological behavior, mechanical properties and microstructure of Al-12Si-ZrC composite prepared by powder metallurgy

The Effects of Aging on the Hardness and Wear Behaviour of 2124 Al Alloy/B4C Composites

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The Effects of Aging on the Hardness and Wear Behaviour of 2124 Al Alloy/B₄C Composites