Dislocation Creep in Al-22.2, 53.6 and 101 at.ppm Fe Solid Solution Alloys

K. Takeshima; Tokuteru Uesugi; Yorinobu Takigawa; Kenji Higashi

doi:10.4028/www.scientific.net/AMR.922.749

Paper Titles

Simulation of Cu Precipitation in the Fe-Cu Binary System
p.728

Plastic Deformation and Elastic Properties of Ti-Nb-Zr-Ta(-Fe-Si) Biomedical Alloys
p.734

Clarification of Extremely High R-Value Mechanism of the Electro-Deposited Pure Iron
p.740

Effect of Si and Ge Addition on the Evolution of Microstructure in Near Alpha Titanium Alloy
p.744

Dislocation Creep in Al-22.2, 53.6 and 101 at.ppm Fe Solid Solution Alloys
p.749

The Effects of Heating Rate and Cold Work on the Development of Dual-Phase Steel Microstructures
p.755

Electrophoretic Deposition and Characterization of Biocomposites on Magnesium for Orthopedic Applications
p.761

Mechanical Properties of ZK60 Magnesium Alloy Processed by High-Pressure Torsion
p.767

Effect of Cooling Rate after High Temperature Nitriding on Transformation Microstructure in Low Carbon Steel
p.773

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 922Dislocation Creep in Al-22.2, 53.6 and 101 at.ppm...

Dislocation Creep in Al-22.2, 53.6 and 101 at.ppm Fe Solid Solution Alloys

Abstract:

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.