Microstructure characteristics and a deformation mechanism of fine-grained tungsten heavy alloy under high strain rate compression

2010 ◽  
Vol 527 (29-30) ◽  
pp. 7565-7570 ◽  
Author(s):  
X. Gong ◽  
J.L. Fan ◽  
B.Y. Huang ◽  
J.M. Tian
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Deformation Mechanism ◽  
High Strain ◽  
Heavy Alloy ◽  
Tungsten Heavy Alloy ◽  
Microstructure Characteristics ◽  
Fine Grained ◽  
Strain Rate Compression

scholarly journals Fracture behavior of twin induced ultra-fine grained ZK61 magnesium alloy under high strain rate compression

2019 ◽  
Vol 8 (4) ◽  
pp. 3475-3486 ◽  
Author(s):  
Abdul Malik ◽  
Wang Yangwei ◽  
Cheng Huanwu ◽  
Muhammad Abubaker Khan ◽  
Faisal Nazeer ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
Fracture Behavior ◽  
High Strain ◽  
Fine Grained ◽  
Strain Rate Compression

High strain rate compression testing of K-49/3501-6 Kevlar/epoxy composites

1997 ◽  
Author(s):  
Eric Preissner ◽  
Eyassu Woldesenbet ◽  
Jack Vinson ◽  
Eric Preissner ◽  
Eyassu Woldesenbet ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Compression Testing ◽  
Epoxy Composites ◽  
Strain Rate Compression

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.

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