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Acta Metall Sin  2004, Vol. 40 Issue (3): 225-229     DOI:
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Cyclic Deformation Behavior Of ECAP Al--Li--Cu--Mg--Zr Alloy
LIU Shimin; WANG Zhongguang
Shenyang National Laboratory for Materials Science; Institute of Metal Research; The Chinese Academy of Sciences
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LIU Shimin; WANG Zhongguang. Cyclic Deformation Behavior Of ECAP Al--Li--Cu--Mg--Zr Alloy. Acta Metall Sin, 2004, 40(3): 225-229 .

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Abstract  Equal--channel angular pressed (ECAP) Al--Li--Cu--Mg--Zr alloy mainly consists of near equi--axial grains with size smaller than 1 m. ECAP Al--Li--Cu--Mg--Zr alloy cyclically softens continuously to failure at higher strain amplitude of p/2=5.510 -3, but cyclically softens initially and then harden continuously to failure at lower strain amplitudes of p/2=510 -4---2.610 -3. The Coffin--Manson curve of the ECAP Al--Li--Cu--Mg--Zr alloy shows an ideal straight line. All these properties are different from those reported previously for the conventional peak--aged Al--Li--Cu--Mg--Zr alloy.
Key words:  Al--Li--Cu--Mg--Zr alloy      fatigue           
Received:  31 March 2003     
ZTFLH:  TG111.8 TG146  

URL: 

https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2004/V40/I3/225

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