Startseite Effect of heat treatment on microstructure, hardening and plasticity of a commercial Al–Zn–Mg–Cu alloy
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Effect of heat treatment on microstructure, hardening and plasticity of a commercial Al–Zn–Mg–Cu alloy

  • Mahmoud Chemingui , Fethi Benkhenafou , Mohamed Khitouni , Karol Jozwiak , Gérard Mesmacque , MingQuan Shi und Lyes Douadji
Veröffentlicht/Copyright: 29. November 2018
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 109 Heft 12

Abstract

The effect of the heat treatment on the microsturucture and the mechanical response of a commercial Al–Zn–Mg–Cu alloy (AA7075) was studied. The influence of annealing on the hardening and plastic properties of Al–Zn-Mg–Cu alloy was investigated by indentation and tensile tests. The microstructural evolution of the alloy was examined by meant of optical, scanning and transmission electron microscopies. After various ageing states, the Al–Zn–Mg–Cu alloy showed significant changes in microstructure and mechanical behaviour. After quenching, the microstructure was characterized by high ductility. Following ageing at 140 °C, corresponding to the maximum hardness value, the alloy reveals a high volume fraction of small η′ precipitates. The minimum hardening is recorded after ageing at 350 °C. The radical change in the microstructure of the alloy influences its mechanical behaviour, especially in hardening and plasticity.

Keywords: Al–Zn–Mg–Cu alloy; Heat treatment; Precipitation hardening; Microstructure; Plastic properties
*Correspondence address, Lyes Douadji, Chongqing Institute of Green and Intelligent Technology, No. 266 Fangzheng Avenue, Shuitu Hi-tech Industrial Park, Shuitu Town, Beibei District, 400714, Chongqing, P.R. China, Tel.: +861732348437, E-mail:

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Received: 2018-03-22
Accepted: 2018-06-27
Published Online: 2018-11-29
Published in Print: 2018-12-10

© 2018, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Dendritic structure formation of magnesium alloys for the manipulation of corrosion properties: Part 1 – microstructure
  5. The influence of twinning on plastic constitutive description of a magnesium alloy
  6. Effect of V and Zr microalloying, and heat treatment on microstructure and mechanical properties of secondary Al-7Si-3Cu-0.3Mg alloy
  7. Effect of heat treatment on microstructure, hardening and plasticity of a commercial Al–Zn–Mg–Cu alloy
  8. Microstructural evolution and mechanical properties of thixoformed 7075 aluminum alloy prepared by conventional and new modified SIMA processes
  9. Hot torsion behavior of SP-700 near beta titanium alloy in single and dual phase regions
  10. Effect of B4C in Ti-6Al-4V matrix on workability behavior of powder metallurgy composites during cold upsetting
  11. Synthesis of Ni/YSZ based anode and investigation of effect of PVA as pore-former upon porosity, microstructure and thermal behavior for potential use in solid oxide fuel cells (SOFCs)
  12. The corrosion behavior of porous Ni–Cr–Fe alloy in 2 mol L−1 alkaline solution
  13. Short Communications
  14. The grain growth in alumina compacts sintered under high pressure
  15. DGM News
  16. DGM News
https://doi.org/10.3139/146.111709
Schlagwörter für diesen Artikel
Al–Zn–Mg–Cu alloy; Heat treatment; Precipitation hardening; Microstructure; Plastic properties

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Dendritic structure formation of magnesium alloys for the manipulation of corrosion properties: Part 1 – microstructure
  5. The influence of twinning on plastic constitutive description of a magnesium alloy
  6. Effect of V and Zr microalloying, and heat treatment on microstructure and mechanical properties of secondary Al-7Si-3Cu-0.3Mg alloy
  7. Effect of heat treatment on microstructure, hardening and plasticity of a commercial Al–Zn–Mg–Cu alloy
  8. Microstructural evolution and mechanical properties of thixoformed 7075 aluminum alloy prepared by conventional and new modified SIMA processes
  9. Hot torsion behavior of SP-700 near beta titanium alloy in single and dual phase regions
  10. Effect of B4C in Ti-6Al-4V matrix on workability behavior of powder metallurgy composites during cold upsetting
  11. Synthesis of Ni/YSZ based anode and investigation of effect of PVA as pore-former upon porosity, microstructure and thermal behavior for potential use in solid oxide fuel cells (SOFCs)
  12. The corrosion behavior of porous Ni–Cr–Fe alloy in 2 mol L−1 alkaline solution
  13. Short Communications
  14. The grain growth in alumina compacts sintered under high pressure
  15. DGM News
  16. DGM News
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