Effect of working temperature on microstructure and mechanical properties of ultrafine grained Al and Al-5vol.%SiCp composite processed by accumulative roll-bonding

Seong Hee Lee, Si Young Chang, Sung Tag Oh

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

Abstract

The effect of working temperature on microstructure and mechanical properties of ultrafine grained monolithic Al and Al-5vol.%SiCp composite processed by accumulative roll bonding (ARB) was studied. The ARB was performed up to eight cycles (an equivalent strain of ∼6.4) without lubricant. The working temperature was varied from ambient temperature to 200° C. The samples processed at temperatures below 100°C exhibited an ultrafine grained structure over almost all regions. However, the samples processed at 200°C showed an inhomogeneous structure in which a few coarse grains due to an occurrence of conventional recrystallization is partially seen. The tensile strength of both the monolithic Al and the composite decreased with increasing the ARB working temperature. The variation of microstructure and mechanical properties of the composite with the working temperature was compared to that of the monolithic aluminum.

Original languageEnglish
Title of host publicationProgress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)
PublisherTrans Tech Publications Ltd
Pages1381-1384
Number of pages4
EditionPART 2
ISBN (Print)0878494197, 9780878494194
DOIs
StatePublished - 2007
Event2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan, Korea, Republic of
Duration: 24 Sep 200628 Sep 2006

Publication series

NameMaterials Science Forum
NumberPART 2
Volume534-536
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference2006 Powder Metallurgy World Congress and Exhibition, PM 2006
Country/TerritoryKorea, Republic of
CityBusan
Period24/09/0628/09/06

Keywords

  • Accumulative roll bonding
  • Mechanical property
  • Metal matrix composite
  • Ultrafine grain

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