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The effect of quench-aging on the mechanical properties of Zn-27Al-1Cu alloy

  • Murat Aydın and Fatih Şenaslan
Published/Copyright: July 27, 2018
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 109 Issue 8

Abstract

The ternary alloy Zn-27Al-1Cu was produced by permanent mold casting. As-cast alloy was aged for different periods after being subjected to solution treatment followed by water quenching. The microstructure, mechanical properties and fatigue behavior of as-cast and heat-treated alloy were then investigated. The quench-aging eliminated the as-cast dendritic structure and produced a uniform microstructure consisting of large grains combined with precipitates. The hardness and tensile strength generally increased, whereas the ductility slightly decreased with aging time. Under all conditions, the longest fatigue life was obtained from the alloy that had been aged for 0.5 h, while the alloy which had been aged for 10 h exhibited the shortest. The fatigue properties were found to be more dependent on impact toughness and elongation, rather than tensile strength.

Keywords: Zn–Al alloys; Fatigue; Aging; Mechanical properties
*Correspondence address, Associate Professor Murat Aydın, Department of Mechanical Engineering, Karadeniz Technical University, Kanuni Campus, Trabzon 61080, Turkey, Tel.: +90462 3774131, Fax: +90462 3773336, E-mail: , Web: http://aves.ktu.edu.tr/maydin/

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Received: 2017-12-01
Accepted: 2018-03-07
Published Online: 2018-07-27
Published in Print: 2018-08-10

© 2018, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111665
Keywords for this article
Zn–Al alloys; Fatigue; Aging; Mechanical properties

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Dynamic fragmentation and spheroidization of α phase grains during hot deformation of Ti-6Al-4V alloy
  5. Formation and characterization of hot tearing in AZ series alloys
  6. The effect of quench-aging on the mechanical properties of Zn-27Al-1Cu alloy
  7. Microstructural and mechanical properties of novel β-type Ti–Nb–Ni alloys containing a second phase
  8. Microstructure evolution mechanisms of undercooled Ni80Cu20 alloys
  9. Microstructures and tensile properties of CuZrAlNb metallic glass composites under different cooling rates
  10. Influence of a rare-earth element on the solidification behaviour and mechanical properties of undercooled Al–Si alloys
  11. Microstructure of aluminide coatings on Ti6Al4V alloy produced by the slurry method with inorganic binder
  12. Ultrathin SnO2 nanorod/reduced graphene oxide nanosheet composites for electrochemical supercapacitor applications with excellent cyclic stability
  13. Combustion synthesis and formation mechanism of silver nanoparticles
  14. Phase relationship of the Ag–Zr–Cr system at 1000 and 750°C
  15. Thermal properties of carbonized composite materials based on carbon filled elastomeric matrices
  16. Short Communications
  17. Surface morphology and phase stability of titanium irradiated with 168 MeV 136Xe ions
  18. DGM News
  19. DGM News
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