Abstract
The formation of amorphous phase, which are invented by Al, Ni and Zr powder, were investigated. Oscillatory ball mill was used to carry out MA (mechanical alloying) in this investigation. DMA (Double Mechanical Alloying) method was also taken, where binary amorphous phases were firstly formed by MA, and the third element powder was added to those amorphous phases, and milled by MA again. The results of DMA were compared with the results of normal MA. For MA of Al-Zr mixed powder, amorphous phases were formed for 72ks in the case of Al-40-50 mol%Zr, while Ni-Zr amorphous phases were obtained at the same milling time for Ni-35-60 mol%Zr. Ternary Al-Ni-Zr amorphous phases were successively obtained by 72 ks of DMA for 30-40 mol%Al and MAed amorphous Ni-35-60 mol%Zr mixed powders. From these results, it was shown that the DMA method was more effective and prepare a wide range ternary amorphous phase than conventional MA method. Furthermore it was confirmed that the hardness of Al-Ni-Zr amorphous alloys decreased with increasing Ni/Zr and Al/(Ni-Zr) ratios, resulted in stable amorphous phases up to higher temperature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Japan Society of Powder and Powder Metallurgy
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
