Microstructural evolution during mechanical milling of rapidly solidified Al-14Ni-14Mm alloy powders
Abbreviated Journal Title
J. Mater. Synth. Process
microstructure; mechanical milling; Al-14Ni-14Mm; hardness; STRAIN-RATE SUPERPLASTICITY; FCC-AL PARTICLES; AMORPHOUS-ALLOYS; NI; MM; BEHAVIOR; STRENGTH; Materials Science, Multidisciplinary
Microstructural evolution in gas-atomized Al-14 wt%Ni-14wt% Mm alloy powders was studied during mechanical milling. It was noted that the as-solidified particle size of 200 mum increases up to 72 h of milling and, subsequently, there was continuous refinement to 20 mum on milling to 200 h. Two microstructurally different zones-Zone A, which is featureless, and Zone B, which has the structure of the as-solidified powder-were noted. The thickness of the Zone A increased with increasing milling time at the expense of Zone B. Zone A was found to be much harder than Zone B and, consequently, crack formation, eventually leading to microstructural refinement, was observed to start in the relatively weaker Zone B.
Journal of Materials Synthesis and Processing
"Microstructural evolution during mechanical milling of rapidly solidified Al-14Ni-14Mm alloy powders" (2001). Faculty Bibliography 2000s. 8035.