Producing nanograined microstructure in Mg-Al-Zn alloy by two-step friction stir processing

@inproceedings{Chang2008ProducingNM,
  title={Producing nanograined microstructure in Mg-Al-Zn alloy by two-step friction stir processing},
  author={Chun-Tuan. Chang and Xing Hao Du and Jen Chiou Huang},
  year={2008}
}
Nanograined structures with an average grain size of 85 nm have been achieved in solution hardened AZ31 magnesium alloy by two-pass friction stir processing under rapid heat sink in which the second pass has a lower heat input. The mean hardness of the nanograined region reaches 1.5 GPa (or 150 Hv), about three times that of the matrix. The evolution of the nanograined structure is also investigated. 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. 
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