Wear properties of thixoformed al-5.7si-2cu-0.3mg aluminium alloy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Earlier work has shown that Al-5.7Si-2Cu-0.3Mg aluminium alloy is suitable for thixoforming process. Here, the dry sliding wear behaviour of the alloy, in the as-cast and thixoformed conditions were investigated. The cooling slope technique was used to produce the alloy with globular microstructure for the thixoforming process. Both the thixoformed and cast samples were subjected to T6 heat treatments prior to the wear tests. The tests were carried out using a pin-on-disc tribometer, against a hardened M2 tool steel disc of 62 HRC at different loads, under dry sliding conditions at fixed sliding speed and sliding distance of 1 m.s–1 and 5 km respectively. The microstructural response, worn surfaces was thoroughly and carefully examined using various methods such as scanning electron microscopy, energy dispersive spectroscopy, and differential scanning calorimetry. The density of the heat treated thixoformed alloys showed significant increase in the hardness property, among others, due to its reduced porosity. Their wear test results also observed that the weight loss of materials increase with an increase in the input load and the sliding distance for all samples. However, the as-cast alloy displayed higher wear rate compared with the thixoformed alloys. In general, the wear mechanisms showed a mixture of abrasive, oxidative and delamination wear (mild wear) at low applied loads and mainly an adhesive (severe wear) at high applied loads.

Original languageEnglish
Title of host publicationSemi-Solid of Alloys and Composites XV
EditorsAhmed Rassili, Stephen P. Midson, Qiang Zhu, Xiao Gang Hu
PublisherTrans Tech Publications Ltd
Pages63-68
Number of pages6
ISBN (Print)9783035713732
DOIs
Publication statusPublished - 1 Jan 2019
Event15th International conference on Semi-Solid Processing of Alloys and Composites, S2P 2018 - Shenzhen, China
Duration: 22 Oct 201824 Oct 2018

Publication series

NameSolid State Phenomena
Volume285 SSP
ISSN (Electronic)1662-9779

Other

Other15th International conference on Semi-Solid Processing of Alloys and Composites, S2P 2018
CountryChina
CityShenzhen
Period22/10/1824/10/18

Fingerprint

aluminum alloys
Aluminum alloys
sliding
Wear of materials
wear tests
casts
tribometers
cast alloys
abrasives
adhesives
Tool steel
heat treatment
heat measurement
hardness
Abrasives
Delamination
steels
slopes
porosity
cooling

Keywords

  • Al-Si-Cu
  • Cooling slope casting
  • Heat treatment
  • Thixoforming
  • Wear
  • Wear

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Abdelgnei, M. A., Omar, M. Z., & Ghazali, M. J. (2019). Wear properties of thixoformed al-5.7si-2cu-0.3mg aluminium alloy. In A. Rassili, S. P. Midson, Q. Zhu, & X. Gang Hu (Eds.), Semi-Solid of Alloys and Composites XV (pp. 63-68). (Solid State Phenomena; Vol. 285 SSP). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/SSP.285.63

Wear properties of thixoformed al-5.7si-2cu-0.3mg aluminium alloy. / Abdelgnei, M. A.; Omar, Mohd. Zaidi; Ghazali, Mariyam Jameelah.

Semi-Solid of Alloys and Composites XV. ed. / Ahmed Rassili; Stephen P. Midson; Qiang Zhu; Xiao Gang Hu. Trans Tech Publications Ltd, 2019. p. 63-68 (Solid State Phenomena; Vol. 285 SSP).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abdelgnei, MA, Omar, MZ & Ghazali, MJ 2019, Wear properties of thixoformed al-5.7si-2cu-0.3mg aluminium alloy. in A Rassili, SP Midson, Q Zhu & X Gang Hu (eds), Semi-Solid of Alloys and Composites XV. Solid State Phenomena, vol. 285 SSP, Trans Tech Publications Ltd, pp. 63-68, 15th International conference on Semi-Solid Processing of Alloys and Composites, S2P 2018, Shenzhen, China, 22/10/18. https://doi.org/10.4028/www.scientific.net/SSP.285.63
Abdelgnei MA, Omar MZ, Ghazali MJ. Wear properties of thixoformed al-5.7si-2cu-0.3mg aluminium alloy. In Rassili A, Midson SP, Zhu Q, Gang Hu X, editors, Semi-Solid of Alloys and Composites XV. Trans Tech Publications Ltd. 2019. p. 63-68. (Solid State Phenomena). https://doi.org/10.4028/www.scientific.net/SSP.285.63
Abdelgnei, M. A. ; Omar, Mohd. Zaidi ; Ghazali, Mariyam Jameelah. / Wear properties of thixoformed al-5.7si-2cu-0.3mg aluminium alloy. Semi-Solid of Alloys and Composites XV. editor / Ahmed Rassili ; Stephen P. Midson ; Qiang Zhu ; Xiao Gang Hu. Trans Tech Publications Ltd, 2019. pp. 63-68 (Solid State Phenomena).
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AB - Earlier work has shown that Al-5.7Si-2Cu-0.3Mg aluminium alloy is suitable for thixoforming process. Here, the dry sliding wear behaviour of the alloy, in the as-cast and thixoformed conditions were investigated. The cooling slope technique was used to produce the alloy with globular microstructure for the thixoforming process. Both the thixoformed and cast samples were subjected to T6 heat treatments prior to the wear tests. The tests were carried out using a pin-on-disc tribometer, against a hardened M2 tool steel disc of 62 HRC at different loads, under dry sliding conditions at fixed sliding speed and sliding distance of 1 m.s–1 and 5 km respectively. The microstructural response, worn surfaces was thoroughly and carefully examined using various methods such as scanning electron microscopy, energy dispersive spectroscopy, and differential scanning calorimetry. The density of the heat treated thixoformed alloys showed significant increase in the hardness property, among others, due to its reduced porosity. Their wear test results also observed that the weight loss of materials increase with an increase in the input load and the sliding distance for all samples. However, the as-cast alloy displayed higher wear rate compared with the thixoformed alloys. In general, the wear mechanisms showed a mixture of abrasive, oxidative and delamination wear (mild wear) at low applied loads and mainly an adhesive (severe wear) at high applied loads.

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