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Effect of Zn addition on clustering behavior in a pre-aged Al-Mg-Si-Cu alloy and its relation to bake hardening response
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General Research Institute for Nonferrous Metals

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    Abstract:

    The effect of Zn addition on clustering behavior in a pre-aged Al-Mg-Si-Cu alloy and its relation to bake hardening response are investigated. After pre-aging at 100 °C for 3 h, the Zn addition prompts the formation of clusters with a uniform Mg/Si ratio, which can easily transform into β" phases. Consequently, a fine and dense distribution of β" phases is observed in the Al-Mg-Si-Cu alloy with Zn addition during bake hardening treatment at 185 °C for 25 min after pre-aging. This correlates well with the enhanced bake hardening response of the Al-Mg-Si-Cu alloy with Zn addition.

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[Zhu Shang. Effect of Zn addition on clustering behavior in a pre-aged Al-Mg-Si-Cu alloy and its relation to bake hardening response[J]. Rare Metal Materials and Engineering,2019,48(11):3500~3505.]
DOI:10.12442/j. issn.1002-185X. E20180015

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History
  • Received:May 22,2018
  • Revised:August 22,2018
  • Adopted:August 30,2018
  • Online: December 10,2019
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