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Volume 30 Issue 12
Aug.  2021
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Article Contents
LI Chuang, WANG Xuemin, SHANG Chengjia, ZHENG Chang'an, LIU Xueyi, HE Xinlai. Influence of thermo-mechanical processing on aging precipitation of Fe-Cu alloys[J]. Chinese Journal of Engineering, 2008, 30(12): 1353-1357,1373. doi: 10.13374/j.issn1001-053x.2008.12.002
Citation: LI Chuang, WANG Xuemin, SHANG Chengjia, ZHENG Chang'an, LIU Xueyi, HE Xinlai. Influence of thermo-mechanical processing on aging precipitation of Fe-Cu alloys[J]. Chinese Journal of Engineering, 2008, 30(12): 1353-1357,1373. doi: 10.13374/j.issn1001-053x.2008.12.002

Influence of thermo-mechanical processing on aging precipitation of Fe-Cu alloys

doi: 10.13374/j.issn1001-053x.2008.12.002
  • Received Date: 2008-01-23
  • Rev Recd Date: 2008-04-23
  • Available Online: 2021-08-06
  • The aging precipitation of a Fe-Cu alloy cold-deformed 50% and 80% was studied. Optical microscope and HREM were employed to observe the microstructure and precipitation in thermo-mechanical processing, and the effect of cold deformation on the aging precipitation was analyzed. The results show that cold deformation is helpful to the precipitation of second phase, after a large quantity of cold deformation the precipitation is accelerated and the bulk volume of second phase becomes greater. Copper-rich transition phase is precipitated in advance and then transformed to ε-Cu phase with the increase of time during the overaging period. The copper-rich phase, i.e. GP zone, is the main cause to strengthen the alloy.

     

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