Effect of low temperature aging on internal friction of AA2024

D. D. Risanti*, S. Van Der Zwaag

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The anelastic behavior of AA2024 alloy is studied in the temperature range between room temperature and 325 °C. The internal friction technique is shown to be very sensitive to the microstructural changes that take place at these temperatures. Interrupted aging performed at low temperature induces increase in the peak height at ∼230 °C indicating the slow release of vacancies aiding the aggregation of Mg and Cu which further transforms into semicoherent precipitates. Stretched specimens indicate increase in background which is attributed to anelastic or viscoelastic of dislocations. TDIF of T6I4 samples is strongly affected to the point of deformation, whilst TDIF of T6I6 samples is affected by the deformation but irrespective to the point of deformation.

Original languageEnglish
Title of host publicationAdvanced Materials Research II
Pages41-46
Number of pages6
DOIs
Publication statusPublished - 2012
Event2012 2nd International Conference on Advanced Material Research, ICAMR 2012 - Chengdu, China
Duration: 7 Jan 20128 Jan 2012

Publication series

NameAdvanced Materials Research
Volume463-464
ISSN (Print)1022-6680

Conference

Conference2012 2nd International Conference on Advanced Material Research, ICAMR 2012
Country/TerritoryChina
CityChengdu
Period7/01/128/01/12

Keywords

  • Al-Cu-Mg alloys
  • Interrupted aging
  • Mechanical spectroscopy
  • Secondary precipitation
  • Thermoelectric power

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