Wear Behavior of Plasma-Sprayed Al-12Si/SiC Composite Coatings under Dry and Water-Lubricated Sliding

Akgün, Selda; Şahin, Salim; Üstel, Fatih

doi:10.1080/10426910902941611

Cited by 9 publications

(3 citation statements)

References 8 publications

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“…From the results they observed that hardness and density increased for copper coated fly ash particles than the uncoated particles. Akgun et al [9] studied the dry and water lubricated wear behavior of Al/SiC composites using ball on disc method. Goo and Kim [10] studied the mechanical and tribological behavior of A356/SiC and A390/SiC composites of 30 µm and 60 µm SiC particles with 20%volume fraction.…”

Section: Introductionmentioning

confidence: 99%

The influence of alumina on mechanical and tribological characteristics of graphite particle reinforced hybrid Al-MMC

et al. 2014

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We consider the influence of alumina (Al 2 O 3 ) particles on mechanical and tribological properties of aluminum hybrid metal matrix composites (MMC). Various weight fraction of Al 2 O 3 (5, 10 and 15%) and constant weight fraction of graphite (5%) were used to fabricate composites by stir casting method. The effect of Al 2 O 3 content on hardness, density and specific wear rate is evaluated. A wear test was performed using central composite design matrix on a pin-on disc apparatus at room temperature for constant sliding distance of 1000 m. The sliding speed, load and weight fraction of Al 2 O 3 were the process variables. The results show that the hardness and density increase with increase in Al 2 O 3 content. From the analysis of variance (ANOVA), load is the dominant factor that affects the specific wear rate of hybrid composites followed by speed and weight fraction of Al 2 O 3. Based on desirability approach, the improvement in the wear resistance of the composites became more prominent at high speed, high load and high weight fraction of Al 2 O 3 . The worn surface of the pin was examined using scanning electron microscope (SEM) which indicates that the wear mechanism of composites is mostly abrasive wear followed by oxide wear.

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Section: Introductionmentioning

confidence: 99%

The influence of alumina on mechanical and tribological characteristics of graphite particle reinforced hybrid Al-MMC

et al. 2014

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“…The ionized gas provides a current path for a transferred arc [6,7]. This technique has a potential to produce rapidly solidifying fine microstructures that exhibit high hardness and increased wear resistance; these coatings can be produced by synthesizing Fe-, Co-, and Ni-based alloy coatings on various traditional substrate materials [7,8]. Among the metallic hard coatings produced by PTA, the hardness of iron-chromium-tungsten alloy coatings is relatively high when compared to that of other alloy systems [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

FeCrC, FeW, and NiAl Modified Iron-Based Alloy Coating Deposited by Plasma Transferred Arc Process

Yilmaz

Özenbaş²,

Yaz

2011

Materials and Manufacturing Processes

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The technique of alloying X120Mn12 steel substrate by plasma transferred arc process was used for development of a surface having high wear resistance. High carbon ferrochromium, ferrotungsten, and nickel-aluminum intermetallic powders were combined to form M 7 C 3 carbides inside Fe-based composite surface coating. The phase transformations on these coated surfaces were comprehensively examined by using a combination of scanning electron microscopy (SEM) with energy dispersive spectrometry microanalysis, differential thermal analysis and X-ray diffraction (XRD). The microstructure studies of the superficial layers of the coating revealed a phase mixture of interdendritic austenite ( ) phase structure and fine eutectic M 7 C 3 carbides. The new formed coated surfaces were investigated by change of alloying elements (Cr, W, Ni), size of dendrites, change of eutectic reaction temperatures, hardness, carbide volume ratio of hard phases, and coating thickness as the processing parameters (powder feed rate and heat input). The dry sliding wear tests were performed on a pin on disc machine. The wear rates of the tests were affected by the powder feed rate, powder type, and applied load. Results revealed that processing powder combination used in this study (FeCrC-FeW-NiAl) provided the best option with superior combination of properties on surface of X120Mn12 steel substrate.

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“…Particulate reinforced aluminium metal matrix composites (Al-MMCs) are potentially useful in lightweight applications (aerospace, transport, etc) due to their excellent properties such as increased specific strength and modulus [1][2][3]. So, the associated welding technology is increasingly emphasized [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The Microstructure of Joint Brazed by Semisolid Stirring Brazing at High Welding Speed

Zeng

Dou

et al. 2012

AMR

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The effect of high welding speed on the macro-appearance and microstructure of joints were investigated in this paper. Experimental results are shown that bonding at one side of joint interface is obviously better than that at another side of bond interface. When welding speed is up to 72mm/min, a discontinuous joining interface is found. It is indicated that increasing of welding speed will be not in favor of disruption of oxide film on surface of composites.

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Wear Behavior of Plasma-Sprayed Al-12Si/SiC Composite Coatings under Dry and Water-Lubricated Sliding

Cited by 9 publications

References 8 publications

The influence of alumina on mechanical and tribological characteristics of graphite particle reinforced hybrid Al-MMC

The influence of alumina on mechanical and tribological characteristics of graphite particle reinforced hybrid Al-MMC

FeCrC, FeW, and NiAl Modified Iron-Based Alloy Coating Deposited by Plasma Transferred Arc Process

The Microstructure of Joint Brazed by Semisolid Stirring Brazing at High Welding Speed

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