Volume 36 Issue 4
Jul.  2016
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Article Navigation >  Chinese Journal of Space Science  > 2016  >  36(4): 445-449
LUO Xinghong, FENG Shaobo, LI Yang. Solidification of AlCuMgZn Single Crystal in Space[J]. Chinese Journal of Space Science, 2016, 36(4): 445-449. doi: 10.11728/cjss2016.04.445
Citation: LUO Xinghong, FENG Shaobo, LI Yang. Solidification of AlCuMgZn Single Crystal in Space[J]. Chinese Journal of Space Science, 2016, 36(4): 445-449. doi: 10.11728/cjss2016.04.445
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Solidification of AlCuMgZn Single Crystal in Space

doi: 10.11728/cjss2016.04.445 cstr: 32142.14.cjss2016.04.445

  • Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 100161

  • Received Date: 2015-11-10
  • Rev Recd Date: 2016-04-18
  • Publish Date: 2016-07-15
    Abstract
  • Gravity plays an important role in alloy solidification process and defect formation. However, it is difficult to reveal the effects of gravity and study the mechanisms through traditional ground-based solidification experiments. Under microgravity conditions, the effects of gravity on molten melt and solidification process will be significantly diminished. Therefore, in order to explore the role of gravity in dendrite growth process and solute segregation as well as solidification defect formation, by using the microgravity environment in space, and combining with ground-based comparison experiments, the dendritic morphologies, characteristics sizes as well as solute segregation and defect formation under normal gravity and microgravity of AlCuMgZn single crystal alloy are planning to be comparatively investigated during Tiangong-2 mission. In this paper, the progress of the project, such as the research contents, sample and ampoule design, space experimental scheme and main ground-based tests and results are introduced.

     

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