Modeling of High-Temperature Deformation of Commercial Pure Aluminum (1050)

2004 ◽  
Vol 13 (2) ◽  
pp. 241-247 ◽  
Author(s):  
M. Abo-Elkhier
Keyword(s):  
High Temperature ◽  
Pure Aluminum ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Aluminum 1050 ◽  
Commercial Pure Aluminum

High Temperature Deformation Behavior of Pre-Sintered Al-10Si-5Fe Based Alloy

2006 ◽  
Vol 510-511 ◽  
pp. 342-345 ◽  
Author(s):  
Dong Suk Lee ◽  
Taek Kyun Jung ◽  
Gyu-Sam Shim ◽  
Mok Soon Kim ◽  
Won Yong Kim ◽  
...  
Keyword(s):  
High Temperature ◽  
Grain Boundary ◽  
Pure Aluminum ◽  
Rate Sensitivity ◽  
Grain Boundary Sliding ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Sensitivity Index ◽  
Temperature Range ◽  
Self Diffusion

The mechanical properties of pre-sintered Al-10Si-5Fe-1Cu-0.5Mg-1Zr (wt%) alloy were investigated in the temperature range from 673K to 813K and at initial strain rates from 10-4 to 100 s-1. In the high temperature range of 793K and 813K, the strain rate sensitivity index was close to that for superplasticity (0.3). Stress exponent was estimated to be 2 and 5 in the temperature range from 793K to 813K and from 673K to 773K, respectively. The activation energies for the plastic flow were calculated to 77kJ/mol for the n=2 region and 127kJ/mol for the n=5 region. These values were close to that for grain boundary diffusion and self-diffusion in pure aluminum, respectively. We found that a dynamic recrystallization (DRX) and grain boundary sliding (GBS) occur depending on the test temperature and stain rate. A filament-like phase containing Cu and Mg was observed in the cracked surface of the specimen deformed at 793K and 813K.

Effect of Additives on High Temperature Deformation in Cubic Zirconia (Y-CSZ)

2008 ◽  
Vol 57 (6) ◽  
pp. 543-547
Author(s):  
Takuma WADA ◽  
Takahiro KAKEI ◽  
Hiroyuki HORII ◽  
Takeshi SHIONO ◽  
Yasunori OKAMOTO
Keyword(s):  
High Temperature ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Cubic Zirconia ◽  
Effect Of Additives
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