Study on Hot Sizing and Creep-Ageing Behavior Of Al-Cu-Mn Cast Alloy

Wenguang Wang, Gang Wang, Peng Du, Guannan Guo, Yiming Rong

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The deformation of large structural cast Al components during quenching is difficult to control and easily out of tolerance. Hot sizing based on creep-forming principle is a new technology to correct inaccuracies of parts in shape and dimensions. Thus, creep-ageing curves of Al-Cu-Mn alloy were conducted under constant tensile stresses ranging 10MPa to 150MPa at 175°Co The curves at high stresses were sparse, while at low stresses were dense. Then, a hyperbolic sine type constitutive model was achieved with genetic algorithm. The creep-ageing model was derived mathematically, but in good consistence with experimental curves with average relative error of 3.85%.

Original languageEnglish (US)
Title of host publicationLight Metals 2016
PublisherWiley
Pages181-185
Number of pages5
ISBN (Electronic)9781119274780
ISBN (Print)9781119225799
DOIs
StatePublished - Feb 7 2016

Keywords

  • Al-Cu-Mn alloy
  • Constitutive model
  • Creep-ageing behavior
  • Genetic algorithm
  • Hot sizing process

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