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High-strengthStrength 7XXX series (Al–Zn–Mg–Cu) aluminium alloysAluminium alloys are known to exhibit a high degree of quench sensitivityQuench sensitivity. Slower quench rates after solution heat treatmentHeat treatment can lead to the formation of coarse equilibrium phasesEquilibrium phase within the grains, which may reduce the strengthStrength of the alloy. Therefore, a clear understanding and effective control of quench sensitivityQuench sensitivity are essential. In this study, quench sensitivityQuench sensitivity of 7075 and 7055 alloys with different Zn/Mg and Cu ratios was investigated. For this purpose, various cooling rates were applied in situ differential scanning calorimetry (DSCDifferential Scanning Calorimetry (DSC)) experiments.

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Characterization of the Quench Sensitivity of a High-Zinc Content 7XXX Series Aluminium Alloy

  • 会议论文

  • 发表日期：

    2026年

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  • Aleyna Gümüşsoy,
  • Işık Kaya,
  • Aybars Güven,
  • Emrah Fahri Özdoğru

摘要

High-strengthStrength 7XXX series (Al–Zn–Mg–Cu) aluminium alloysAluminium alloys are known to exhibit a high degree of quench sensitivityQuench sensitivity. Slower quench rates after solution heat treatmentHeat treatment can lead to the formation of coarse equilibrium phasesEquilibrium phase within the grains, which may reduce the strengthStrength of the alloy. Therefore, a clear understanding and effective control of quench sensitivityQuench sensitivity are essential. In this study, quench sensitivityQuench sensitivity of 7075 and 7055 alloys with different Zn/Mg and Cu ratios was investigated. For this purpose, various cooling rates were applied in situ differential scanning calorimetry (DSCDifferential Scanning Calorimetry (DSC)) experiments.