Study on hot sizing and creep-ageing behavior of AJ-Cu-Mn cast alloy

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The deformation of large structural cast A1 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 lOMPa 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 - Held During TMS 2016
Subtitle of host publication145th Annual Meeting and Exhibition
PublisherMinerals, Metals and Materials Society
Pages181-185
Number of pages5
Volume2016-January
ISBN (Electronic)9781119225799
StatePublished - Jan 1 2016
EventLight Metals 2016 - TMS 2016: 145th Annual Meeting and Exhibition - Nashville, United States
Duration: Feb 14 2016Feb 18 2016

Other

OtherLight Metals 2016 - TMS 2016: 145th Annual Meeting and Exhibition
CountryUnited States
CityNashville
Period2/14/162/18/16

Keywords

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

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