Crystallization of a Mechanically Activated CuTi Alloy
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The atomic structure and amorphous-crystalline transition dynamics in CuTi metallic glass synthesized by high-energy ball milling have been studied. Using high-resolution transmission electron microscopy (HRTEM), it has been shown that the initial amorphous phase contains crystalline inclusions, which are up to 8 nm in size and may serve as crystallization centers. In contrast to the earlier studied amorphous CuTi alloys synthesized by melt spinning, the process of crystallization in the mechanically generated amorphous alloy begins at a lower temperature (250°C) and lasts for 20–30 s. A conclusion about the diffusion mechanism of crystallization in this material has been made.
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- 1.Yu. K. Kovneristyi, Physicochemical Foundations for the Creation of Amorphous Metallic Alloys (Nauka, Moscow, 1983) [in Russian].Google Scholar
- 7.A. J. Maeland, in Rapidly Quenched Metals, Ed. by S. Steeb and H. Warlimont (Elsevier, Amsterdam, 1985), p. 1507.Google Scholar
- 9.Fundamental Bases of Mechanical Activation, Mechanosynthesis, and Mechanochemical Technologies, Ed. by E. G. Avvakumova (Sib. Otd. Ross. Akad. Nauk, Novosibirsk, 2009) [in Russian].Google Scholar
- 10.D. Yu. Kovalev, S. G. Vadchenko, A. S. Rogachev, A. S. Aronin, and M. I. Alymov, Dokl. Akad. Nauk 473 (1), 28 (2017).Google Scholar
- 14.V. I. Ponomarev and D. Yu. Kovalev, Int. J. Self-Propag. High-Temp. Synth. 14 (2), 111 (2005).Google Scholar