Role of local heating in crystallization of amorphous alloys under ball milling: An experiment on Fe{sub 90}Zr{sub 10}
- Research Center for Machine Parts and Materials Processing, University of Ulsan, Namgu Mugeo 2-Dong, San 29, Ulsan 680-749 (Korea, Republic of)
Fe{sub 90}Zr{sub 10} was chosen as a model system to elucidate the roles of mechanical deformation and local heating in the phenomenon of ball-milling-induced crystallization of amorphous alloys. The structural evolution of melt-spun amorphous Fe{sub 90}Zr{sub 10} ribbons under different milling conditions and high-pressure torsion was investigated by means of x-ray diffraction, Moessbauer spectroscopy, and magnetic measurements. Despite a considerable difference in the local temperatures for high-energy and low-energy ball millings, cryomilling (under liquid nitrogen-cooling), and high-pressure torsion, amorphous Fe{sub 90}Zr{sub 10} crystallizes into a supersaturated {alpha}-Fe(Zr) solid solution in all cases. Local heating occurring under high- and low-energy millings only plays a minor role and leads to a slight shift of the crystallization products towards equilibrium state. Mechanical deformation was established as the primary cause of crystallization of the amorphous Fe-Zr alloy under ball milling.
- OSTI ID:
- 20957799
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 14 Vol. 75; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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