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Structural Evolutions of Nanocrystalline Nial Evtermetallic during Mechanical Alloying Process

Excerpt

In this study, nanocrystalline NiAl intermetallic was prepared by mechanical alloying elemental mixture of Ni and Al powders. The phase transformation, morphology of powders, grain size and r.m.s microstrain of powders during milling were determined using XRD combined Rietveld, SEM and TEM analyses. NiAl alloy powders were obtained after a short milling time. Increasing milling time resulted in the alternation of refinement of grain size down to a nanoscale and increase of strain along with the tendency of structure toward amorphization.

  • Abstract
  • Key Words
  • 1 Introduction
  • 2. Experimental Procedures
  • 3. Results And Discussion
  • 4. Summaries
  • References

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