The optimization of ECAP conditions to achieve high strain-rate superplasticity in a Zr- and Sc-modified aa 7075 aluminum alloy

2009 ◽  
Vol 100 (6) ◽  
pp. 851-857 ◽  
Author(s):  
Kryštof Turba ◽  
Přemysl Málek ◽  
Edgar F. Rauch ◽  
Florence Robaut ◽  
Miroslav Cieslar
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
7075 Aluminum Alloy ◽  
Aa 7075

High Strain Rate Superplasticity in a Zr and Sc Modified 7075 Aluminum Alloy Produced by ECAP

2008 ◽  
Vol 584-586 ◽  
pp. 164-169 ◽  
Author(s):  
Krystof Turba ◽  
Premysl Malek ◽  
Edgar F. Rauch ◽  
Miroslav Cieslar
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Rate Sensitivity ◽  
7075 Aluminum Alloy ◽  
Fine Grained ◽  
Angular Pressing ◽  
Average Grain Size ◽  
Elongation To Failure

Equal-channel angular pressing (ECAP) at 443 K was used to introduce an ultra-fine grained (UFG) microstructure to a Zr and Sc modified 7075 aluminum alloy. Using the methods of TEM and EBSD, an average grain size of 0.6 1m was recorded after the pressing. The UFG microstructure remained very stable up to the temperature of 723 K, where the material exhibited high strain rate superplasticity (HSRSP) with elongations to failure of 610 % and 410 % at initial strain rates of 6.4 x 10-2 s-1 and 1 x 10-1 s-1, respectively. A strain rate sensitivity parameter m in the vicinity of 0.45 was observed at temperatures as high as 773 K. At this temperature, the material still reached an elongation to failure of 430 % at 2 x 10-2 s-1. These results confirm the stabilizing effect of the Zr and Sc additions on the UFG microstructure in a 7XXX series aluminum alloy produced by severe plastic deformation.

scholarly journals High strain rate superplasticity of the SiCp/7075 aluminum alloy composite made by a vortex method.

2001 ◽  
Vol 51 (3) ◽  
pp. 169-174 ◽  
Author(s):  
Takeo HIKOSAKA ◽  
Tsunemichi IMAI ◽  
Toshiro KOBAYASHI ◽  
Hiroyuki TODA
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Vortex Method ◽  
7075 Aluminum Alloy ◽  
Alloy Composite

High strain rate compressive characterization of aluminum alloy/fly ash cenosphere composites

JOM ◽  
2011 ◽  
Vol 63 (2) ◽  
pp. 53-56 ◽  
Author(s):  
Dung D. Luong ◽  
Nikhil Gupta ◽  
Atef Daoud ◽  
Pradeep K. Rohatgi
Keyword(s):  
Aluminum Alloy ◽  
Fly Ash ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Fly Ash Cenosphere

Viscoplastic behavior of AA7075 aluminum alloy at high strain rate

2021 ◽  
Vol 35 (12) ◽  
pp. 5405-5413
Author(s):  
Keguo Zhang ◽  
Yang Cao ◽  
Jianlin An ◽  
Keyi Wang
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain

High strain-rate deformation of T8-tempered, cryo-rolled and ultrafine grained AA 2099 aluminum alloy

2019 ◽  
Vol 754 ◽  
pp. 602-612 ◽  
Author(s):  
A.G. Odeshi ◽  
A.A. Tiamiyu ◽  
D. Das ◽  
N. Katwal ◽  
I.N.A. Oguocha ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Ultrafine Grained ◽  
High Strain Rate Deformation

Using ECAP to achieve grain refinement, precipitate fragmentation and high strain rate superplasticity in a spray-cast aluminum alloy

2003 ◽  
Vol 51 (20) ◽  
pp. 6139-6149 ◽  
Author(s):  
Cheng Xu ◽  
Minoru Furukawa ◽  
Zenji Horita ◽  
Terence G Langdon
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
Grain Refinement ◽  
High Strain ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum

Effect of equal-channel angular pressing routes on high-strain-rate deformation behavior of ultra-fine-grained aluminum alloy

2010 ◽  
Vol 58 (7) ◽  
pp. 2545-2554 ◽  
Author(s):  
Yang Gon Kim ◽  
Young Gun Ko ◽  
Dong Hyuk Shin ◽  
Sunghak Lee
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
Equal Channel Angular Pressing ◽  
Deformation Behavior ◽  
High Strain ◽  
Fine Grained ◽  
Angular Pressing ◽  
High Strain Rate Deformation

Very high strain rate superplasticity in a mechanically alloyed IN9052 aluminum alloy

1992 ◽  
Vol 159 (1) ◽  
pp. L1-L4 ◽  
Author(s):  
K. Higashi ◽  
T. Okada ◽  
T. Mukai ◽  
S. Tanimura
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Mechanically Alloyed ◽  
Very High

scholarly journals Thermal stability of the ultrafine amts aluminum alloy after high strain-rate deformation

2015 ◽  
pp. 72-79
Author(s):  
I.G. Shirinkina ◽  
◽  
I.G. Brodova ◽  
V.V. Astafiev ◽  
◽  
...  
Keyword(s):  
Thermal Stability ◽  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
High Strain Rate Deformation ◽  
Thermal Stability Of

Development of adiabatic shearing bands in 7003-T4 aluminum alloy under high strain rate impacting

2018 ◽  
Vol 732 ◽  
pp. 91-98 ◽  
Author(s):  
Xiaodong Wu ◽  
Luoxing Li ◽  
Wenhui Liu ◽  
Sikang Li ◽  
Long Zhang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Adiabatic Shearing
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