Wear of Aluminum-Alloy Matrix Composites in Lubricated Conformal Contact with Case Hardened Steel

Wang, Q.; Cheng, H. S.; Caracostas, C. A.; Fine, M. E.

doi:10.1080/10402009408983353

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Smearing occurs due to back transferring of the wear material from the disc surface to the sample surface and the scratches result from ploughing action of the hard y and silicon particles removed from the sample surface as explained in previously published papers. 8,[15][16][17][18][19][20] More smearing was observed on the wear surface of the Al-25Zn-3Cu-3Si alloy (Figures 9 and 10) while wear surfaces of brass and bronze samples revealed deeper and larger scratches (Figures 11 and 12). In addition, Al-25Zn-3Cu-3Si alloy produced flake-shaped small wear particles, while the wear debris of SAE 65 bronze appeared to be as laths or machining chips (Figures 14 and 15).…”

Section: Discussionmentioning

confidence: 99%

A comparative study of lubricated friction and wear behaviour of Al–25Zn–3Cu–3Si bearing alloy

Bican

Savaşkan

2014

Proceedings of the Institution of Mechanical Engineers, Part J:

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Lubricated friction and wear behaviour of Al-25Zn-3Cu-3Si alloy was investigated on a block-on-disc test machine in comparison with 60/40 brass and SAE 65 bronze. T6 heat treatment increased the hardness, strength and wear resistance of the Al-25Zn-3Cu-3Si alloy. This alloy exhibited much higher wear resistance than the 60/40 brass and SAE 65 bronze in both as-cast and heat-treated conditions. The results obtained from the experimental alloys are discussed in terms of their microstructure, mechanical properties and wear behaviour.

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Section: Discussionmentioning

confidence: 99%

A comparative study of lubricated friction and wear behaviour of Al–25Zn–3Cu–3Si bearing alloy

Bican

Savaşkan

2014

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…The common type of journal-bearing contact failure is seizure of the journal and bearing surfaces (Budinski, 1988 andWang, 1998;Burton, R. A., 1965;Heckmann and Burton, 1979). It has been found that contact and lubricant film breakdown are responsible for failure initiation, and that temperature can alter the state of contact and lubrication (Khonsari and Kim, 1989;Ting and Winer, 1989;Ni and Cheng, 1995, a and b;Wang et al, 1994). Due to bearing structural distortion caused by frictional heating, the bearing may lose its designed clearance, resulting in multiple-contacts and seizure failure (Hazlett and Khonsari, 1996, Wang et al, 1995, Pascovici et al, 1995, Monmousseau et al, 1997.…”

Section: Introductionmentioning

confidence: 99%

Analyses of Heat-Pipe Cooled Isothermal Journal Bearings

Wang

Chen

Cao

1999

Journal of Tribology

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An isothermal journal bearing that incorporates heat-pipe cooling technology has been developed. The heat pipe can spread frictional heat rapidly along the bearing circumference, resulting in a uniform temperature distribution in the bearing with a low peak temperature and stable transient thermal performance. A numerical model has been developed for the new bearing to facilitate a thorough understanding of its performance as well as an optimal bearing design. The heat pipe in the bearing is modeled as a heat conductor whose effective thermal conductance is determined through the correlation between the numerical results and experimental data. The heat transfer coefficients at bearing boundaries are obtained with the assistance of experimental measurements and calculations using semi-empirical correlations. Good agreement is observed between the analytical and experimental results. Once the analytical model is validated, a parametric study is conducted for the performance of new bearings with different configurations and materials. The analytical results further confirm that the isothermal journal bearing developed has the ability to battle frictional-heat-induced problems, which can significantly benefit both bearing operation and failure prevention.

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Seizure failure of journal-bearing conformal contacts

Wang

1997

Wear

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Wear of Aluminum-Alloy Matrix Composites in Lubricated Conformal Contact with Case Hardened Steel

Cited by 4 publications

References 19 publications

A comparative study of lubricated friction and wear behaviour of Al–25Zn–3Cu–3Si bearing alloy

A comparative study of lubricated friction and wear behaviour of Al–25Zn–3Cu–3Si bearing alloy

Analyses of Heat-Pipe Cooled Isothermal Journal Bearings

Seizure failure of journal-bearing conformal contacts

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