Microstructural Evolution During Mechanical Milling Of Rapidly Solidified Al-14Ni-14Mm1 Alloy Powders
Al-14Ni-14Mm; Hardness; Mechanical milling; Microstructure
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 μm increases up to 72 h of milling and, subsequently, there was continuous refinement to 20 μm 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
Number of Pages
Source API URL
Hong, Soon Jik; Kim, Taek Soo; and Suryanarayana, C., "Microstructural Evolution During Mechanical Milling Of Rapidly Solidified Al-14Ni-14Mm1 Alloy Powders" (2001). Scopus Export 2000s. 514.