Dislocation Creep in Al-22.2, 53.6 and 101 at.ppm Fe Solid Solution Alloys
Keyword(s):
Creep tests of ultra-high-purity (99.999%) Al and Al-22.2, 53.6, 101 at.ppm Fe solid solution alloys were conducted at 773 K in the stress range of 2-6 MPa in order to investigate effect of solute Fe on high temperature deformation of Al. Creep resistance was enhanced by addition of Fe in solid solution. The stress exponents of the samples exhibited values of about 5, which indicate that climb-controlled dislocation creep was dominant deformation mechanism. It could be suggested that Fe atoms segregating in dislocations due to the strong interaction between solute Fe atoms and the dislocation enhanced the creep resistance.
2007 ◽
pp. 551-556
1999 ◽
Vol 30
(3)
◽
pp. 587-600
◽
2007 ◽
Vol 340-341
◽
pp. 835-840
◽
2012 ◽
Vol 182-183
◽
pp. 189-193
2005 ◽
pp. 579-584
2005 ◽
Vol 495-497
◽
pp. 579-584
◽
1999 ◽
Vol 63
(9)
◽
pp. 1093-1096
◽