Study of the feasibility of producing Al–Ni intermetallic compounds by mechanical alloying

The Effects of Nickel Additions on Microstructural and Hardness of Ball Milled of Al-6wt%Zn-3wt%Mg-2wt%Cu Alloys Underwent the Artificial Aging

“…Mohammed, et al [14]showed that after 15 hrs of mechanical alloying processing for the milled alloy (Al-5.5Zn-2.5%Mg-1.5%Cu) forming various compounds of Ni-rich particulates through the Al-matrix additionally good mechanical properties. In the present study, the producing synthesized of the Al-Ni intermetallic s by mechanical alloying with 12 wt.…”

“…MA process for the powder mixture was completed at milling time of approximately 15 hrs. Ball milling experiments were periodically halted every 15 min and then resumed for 45 min to prevent a significant increase in temperature, more detailed of the MA process in the present study [12][13][14].…”

Relaxation path of nanoparticles in an oxygen-enriched ferritic oxide-dispersion-strengthened alloy

“…Both particles seem to have a b.c.c. structure observed along the same [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] zone axis. The interplanar distances do not match the Y 2 O 3 phase or any other type of known Y-Ti oxide structures, Fig.…”

“…Successive impacts between milling balls and powder result in the formation of a large amount of point defects together with the fragmentation, amorphization and dissolution of the alloyed components (Y 2 O 3 and TiH 2 ) [6][7][8][9][10]. MA is therefore an out of equilibrium process and is known to form solid solutions of immiscible materials [11][12][13][14]. Numerous milling parameters are involved in mechanical alloying as the milling atmosphere, time and intensity, the mill type or different type of contaminations (powder or gas purity, milling balls, powder transfers).…”

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“…The effects of nickel additives dispersed within the Al matrix of alloys. These dispersoid phase particles are looped, by passed and/or sheared by the dislocation through the Orowan mechanism as follow[14].…”