Partial martensitic transformation of nanocrystalline NiAl intermetallic during mechanical alloying |
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| Authors: | A. Mashreghi M.M. Moshksar |
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| Affiliation: | aDepartment of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz 7134851154, Iran |
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| Abstract: | Nanocrystalline NiAl intermetallic powders were synthesized by mechanical alloying (MA) in a planetary ball mill. Microstructural characterization was accomplished using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The nanocrystalline NiAl powders were formed by a gradual exothermic reaction mechanism during MA. Prolonged milling resulted in partial martensitic transformation of B2-NiAl to tetragonal L10-NiAl structure. It is believed that the martensitic transformation is induced by mechanical stress during MA. |
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| Keywords: | Intermetallics Mechanical alloying X-ray diffraction |
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