Wear behavior of alloyed hypereutectic gray cast iron

Vadiraj, Aravind; Balachandran, G.; Kamaraj, M.; Gopalakrishna, B.; Rao, D.V. Sridhara

doi:10.1016/j.triboint.2009.10.004

Cited by 34 publications

(13 citation statements)

References 9 publications

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“…The presence of niobium carbides prevents the loss of material during sliding by reinforcing the matrix and graphite serves as a lubricant lowering friction. However, when a carbide particle is released from the matrix, three-body abrasion may take place [40]. Similar results have been observed if the alloying element is titanium [41].…”

Section: Niobium Effect On the Structure And Properties Of Cast Ironssupporting

confidence: 67%

Niobium in Cast Irons

Bedolla-Jacuinde¹

2016

Progress in Metallic Alloys

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This work reviews the efect of niobium on diferent cast irons. This alloying element has a high ainity by carbon forming carbides of the type MC therefore, the main efect is to strengthen the matrix of the alloys due to a hard-phase dispersion mechanism. Even at low levels of niobium < . % , MC carbides are found. The presence of such carbides increases hardness, yield and tensile strength in ductile irons, but the most important role is to increase wear resistance. Therefore, the use of niobium has been focussed mainly in alloyed white irons for wear resistance applications and in motled cast iron used for rolls in hot rolling mills.

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Section: Niobium Effect On the Structure And Properties Of Cast Ironssupporting

confidence: 67%

Niobium in Cast Irons

Bedolla-Jacuinde¹

2016

Progress in Metallic Alloys

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“…The observed similar level of wear rate of the grey cast iron as compared to the Ni coatings at RT is due to its higher amount of graphite, that can act as solid lubricant, leading to a less volume loss of material, compensating its lower hardness [13,14].…”

Section: Wear Ratementioning

confidence: 83%

“…During sliding experiments the movement of the ball promotes the wear of surface specimen with production of both oxide and graphite debris. Graphite will act as a solid lubricant in tribo-film, promoting a decrease of friction coefficient and having, indirectly, an important impact on reducing the wear [13,14].…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Effect of the substrate dilution on the room and high temperature tribological behaviour of Ni-based coatings deposited by PTA on grey cast iron

Fernandes¹,

Polcar²,

Loureiro³

et al. 2015

Surface and Coatings Technology

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In the present investigation the effect of the substrate dilution on room and high temperature (550 and 700 ºC) tribological behaviour of nickel based hardfaced coating deposited by plasma transferred arc onto a grey cast iron was investigated and compared to the uncoated grey cast iron. At room temperature, the wear loss of coatings was independent of the substrate dilution and similar to the grey cast iron. At high temperatures, coating produced with high dilution displayed the highest wear resistance between all the samples. This is attributed to the formation of a protective tribo-layer resulting from the agglomeration of a high amount of oxide debris due to its lower oxidation resistance when compared to the sample produced with low dilution.

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“…The silicon and some rare earth elements can transform the graphite morphology from flake-like to vermicular-like or spherical-like. Different functional alloy cast irons, such as grey cast iron, spherical cast iron, vermicular cast iron, and ductile cast iron, can be obtained by adding different alloying elements [13]- [17]. The effect of alloying element on the wear characteristic of grey cast iron has also been considered [18]- [21].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Copper Addition on the Mechanical and Wear Properties of Grey Cast Iron

Agunsoye¹,

Bello²,

Hassan³

et al. 2014

JMMCE

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An alloy of cast iron and copper (Fe-Cu) has been developed using a stir cast process. The compositional, microstructural characterization and wear property of the developed Fe-Cu alloy were carried out with the aids of X-ray diffractometer, scanning electron microscope (SEM) and pin on Disc machine. The mechanical properties such as hardness and impact energy were investigated. Wear linear equations were generated with the aids of MATLAB linear fitting. The results revealed that the presence of copper (99% pure) in the melt of grey cast iron inhibited the formation of cementite. However, the impact energy of the grey cast iron increased with %weight (wt) of copper addition. Hence, the hardness and wear resistance of the developed Fe-Cu alloy were sacrificed. Hence, the developed Fe-Cu alloy is an excellent material which can be used in the vibration damping application especially in the shock absorber.

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Wear behavior of alloyed hypereutectic gray cast iron

Cited by 34 publications

References 9 publications

Niobium in Cast Irons

Niobium in Cast Irons

Effect of the substrate dilution on the room and high temperature tribological behaviour of Ni-based coatings deposited by PTA on grey cast iron

The Effect of Copper Addition on the Mechanical and Wear Properties of Grey Cast Iron

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