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Microstructure and Properties of 6013 Type Aluminum Alloy Produced by Cyclic Channel Die Compression Process
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    Abstract:

    6013 type aluminum alloy produced by cyclic channel die compression (CCDC) process was investigated to explore whether the fine grain and elimination of anisotropy can be obtained. Microstructures and properties of 6013 type aluminum alloy were tested by optical microscopy (OM), transmission electron microscopy (TEM) and hardness tester. The results indicate that CCDC process can effectively refine the grains and eliminate the anisotropy. Different-orientation, staggered belts are observed, which is conducive to refining the microstructure when the alloy is subjected to CCDC process. Recrystallization, equiaxed grains, and homogeneous distribution are gotten when the alloy is annealed at 480 oC for 2 h. The grains are significantly refined and the microstructural anisotropy is reduced compared with the alloy without CCDC. The strength of the alloy decreases first and then increases with increasing the passes of CCDC. The hardness (HV) of the alloy is 1418.5 MPa and 1503.5 MPa compressed by 3 passes and 12 passes, respectively, when the alloy was treated by T6 solution-aging (560 oC /2 h+191 oC /4 h). It is shown that the fine grain and elimination of anisotropy can be obtained and the strength would be increased after multi-passes CCDC

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[Zhang Fubao, Xu Xiaojing, Zhang Yunkang, Zhang Zhenqiang, Wu Yao. Microstructure and Properties of 6013 Type Aluminum Alloy Produced by Cyclic Channel Die Compression Process[J]. Rare Metal Materials and Engineering,2014,43(11):2819~2823.]
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History
  • Received:November 25,2013
  • Revised:
  • Adopted:
  • Online: April 07,2015
  • Published: