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A Study on Synthesis of Ni-Ti-B Alloy by Mechanical Alloying from Elemental Component Powder
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 Title & Authors
A Study on Synthesis of Ni-Ti-B Alloy by Mechanical Alloying from Elemental Component Powder
Kim, Jung Geun; Park, Yong Ho;
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A Ni-Ti-B alloy powder prepared by mechanical alloying (MA) of individual Ni, Ti, and B components is examined with the aim of elucidating the phase transitions and crystallization during heat treatment. Ti and B atoms penetrating into the Ni lattice result in a Ni (Ti, B) solid solution and an amorphous phase. Differential thermal analysis (DTA) reveals peaks related to the decomposition of the metastable Ni (Ti, B) solid solution and the separation of equilibrium , , and phases. The exothermal effects in the DTA curves move to lower temperatures with increasing milling time. The formation of a phase by annealing indicates that the mechanochemical reaction of the Ni-Ti-B alloy does not comply with the alloy composition in the ternary phase diagram, and Ti-B bonds are found to be more preferable than Ni-B bonds.
Ball-milling;Mechanical alloying;X-ray diffraction;Phase transitions;Differential Thermal Analysis;
 Cited by
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