Microstructure effects on tensile brittleness of as-quenched ZL2O5A at elevated temperature

Wang Wenguang, Guannan Guo, Wang Gang, Rong Ylming

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

Abstract

The solution quenching process is a critical heat treatment process for aluminum alloy aiming at obtaining better strength and homogeneous super solid solution. In this paper, the mechanical properties of Al-5%Cu-0.4%Mn (which is labled as ZL205 in China standard with similar chemical content of 2XXX series aluminum alloy) in as-quenched state, which is used for constructing large thin wall components. are tested. ZL205A shows good performance under loading at room temperature, while losing its toughness and exhibiting tensile brittleness, which is unexpected, at elevated temperature (especially at 300°C). After observing the fracture sections of ZL2O5A at room temperature and 300°C, it may be concluded that one possible reason leading to this phenomena may be the formation of T phase at grain boundaries. Such a hypothesis is validated and discussed with the help of SEM observations.

Original languageEnglish (US)
Title of host publicationASM International - 28th Heat Treating Society Conference, HEAT TREATING 2015
PublisherASM International
Pages111-115
Number of pages5
ISBN (Electronic)9781510815100
StatePublished - Jan 1 2015
Event28th Heat Treating Society Conference, HEAT TREATING 2015 - Detroit, United States
Duration: Oct 20 2015Oct 22 2015

Publication series

NameASM International - 28th Heat Treating Society Conference, HEAT TREATING 2015

Other

Other28th Heat Treating Society Conference, HEAT TREATING 2015
CountryUnited States
CityDetroit
Period10/20/1510/22/15

Keywords

  • Aluminum alloy
  • Microstructure
  • Solution quenching
  • Tensile brittleness

Fingerprint Dive into the research topics of 'Microstructure effects on tensile brittleness of as-quenched ZL2O5A at elevated temperature'. Together they form a unique fingerprint.

Cite this