CER - Central Repository
Institute of Chemistry, Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Structural, mechanical and tribological characterization of Zn25Al alloys with Si and Sr addition

Authorized Users Only
2014
Authors
Vencl, Aleksandar
Bobić, Ilija
Vučetić, Filip
Bobić, Biljana
Ružić, Jovana
Article (Published version)
Metadata
Show full item record
Abstract
The ZA-27 alloy is a zinc-aluminium casting alloy that has been frequently used as the material for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major disadvantages is its dimensional instability over a period of time (ageing). To overcome this, copper in the alloy may be replaced with silicon. Coarsening of silicon particles can be controlled by a suitable addition of strontium. In this paper, the commercial ZA-27 alloy and six different Zn25Al alloys (with 1 and 3 wt.% silicon; and with 0, 0.03 and 0.05 wt.% strontium) were obtained by casting in the pre-heated steel mould. Casting of the alloys was carried out at a laboratory level. In the alloys containing silicon, a finer dendritic structure was noticed compared to the structure of the commercial ZA-27 alloy. The addition of strontium influenced the size and distribution of primary silicon particles. Needle-like particles of eutectic silicon were changed into the fibr...ous ones. The presence of silicon and strontium did not significantly affect mechanical properties of the obtained Zn25Al alloys compared to mechanical properties of the commercial ZA-27 alloy. Wear rate of the alloys containing silicon was lower than that of the ZA-27 alloy. The addition of strontium further lowers the wear rate and slightly increases the coefficient of friction.

Keywords:
Zinc alloys / Strontium / Microstructure / Boundary lubrication / Friction / Wear
Source:
Materials & Design, 2014, 64, 381-392
Publisher:
  • Elsevier Sci Ltd, Oxford
Projects:
  • Republic of Serbia, Ministry of Education, Science and Technological Development
  • The effect of nano- and microconstituents on the synthesis and characteristics of novel composite materials with metal matrix (RS-172005)
  • Investigation and Optimization of the Technological and Functional Performance of the Ventilation Mill in the Thermal Power Plant Kostolac B (RS-34028)
  • Development of the tribological micro/nano two component and hybrid selflubricating composites (RS-35021)

DOI: 10.1016/j.matdes.2014.07.056

ISSN: 0261-3069

WoS: 000342681600050

Scopus: 2-s2.0-84908134802
[ Google Scholar ]
17
11
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1399
Collections
  • Radovi istraživača / Researchers' publications
Institution
IHTM

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB