Accumulative Roll Bonding of 7075 Aluminium Alloy at High Temperature

Abstract:

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The 7075 Al alloy was processed by accumulative roll bonding (ARB) at 300, 350 and 400 °C. The microstructure and texture were characterized and the hardness was measured. Cell/(sub)grain sizes less than 500 nm and typical β-fibre rolling texture were observed in the three ARBed samples. At 400 °C, the presence of elements in solid solution leads to a poorly misoriented microstructure and to a homogeneous β-fibre texture. At 300 and 350 °C highly misoriented microstructure and heterogeneous β-fibre rolling texture are observed, especially at 350 °C, wherein the degree of dynamic recovery is higher. Hardness of the ARBed samples is affected by the amount of atoms in solid solution at the different processing temperatures.

Info:

Periodical:

Materials Science Forum (Volumes 638-642)

Main Theme:

Edited by:

T. Chandra, N. Wanderka, W. Reimers , M. Ionescu

Pages:

1929-1933

DOI:

10.4028/www.scientific.net/MSF.638-642.1929

Citation:

P. Hidalgo et al., "Accumulative Roll Bonding of 7075 Aluminium Alloy at High Temperature", Materials Science Forum, Vols. 638-642, pp. 1929-1933, 2010

Online since:

January 2010

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$35.00

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